Paul Stumbles: to be circumcised?
Acts 16:1-3 And he came also to Derbe and to Lystra. And behold, a certain disciple was there, named Timothy, the son of a Jewish woman who was a believer, but his father was a Greek, and he was well spoken of by the brethren who were in Lystra and Iconium. Paul wanted this man to go with him; and he took him and circumcised him because of the Jews who were in those parts, for they all knew that his father was a Greek.
Romans 2:25-28 For indeed circumcision is of value, if you practice the Law; but if you are a transgressor of the Law, your circumcision has become uncircumcision. If therefore the uncircumcised man keeps the requirements of the Law, will not his uncircumcision be regarded as circumcision? And will not he who is physically uncircumcised, if he keeps the Law, will he not judge you who though having the letter of the Law and circumcision are a transgressor of the Law? But he is a Jew who is one inwardly; and circumcision is that which is of the heart, by the Spirit, not by the letter; and his praise is not from men, but from God.
Romans 3:1-2 Then what advantage has the Jew? Or what is the benefit of circumcision? Great in every respect.
I Corinthians 7:18-20 Was any man called already circumcised? Let him not become uncircumcised. Has anyone been called in uncircumcision? Let him not be circumcised. Circumcision is nothing, and uncircumcision is nothing, but what matters is the keeping of the commandments of God. Let each man remain in that condition in which he was called.
Galatians 2:3-5 But not even Titus who was with me, though he was a Greek, was compelled to be circumcised. But it was because of the false brethren who had sneaked in to spy out our liberty which we have in Christ Jesus, in order to bring us into bondage. But we did not yield in subjection to them for even an hour, so that the truth of the gospel might remain with you.
Galatians 5:1-6 It was for freedom that Christ set us free; therefore keep standing firm and do not be subject again to a yoke of slavery. Behold I, Paul, say to you that if you receive circumcision, Christ will be of no benefit to you. And I testify again to every man who receives circumcision, that he is under obligation to keep the whole Law. You have been severed from Christ, you who are seeking to be justified by law; you have fallen from grace. For we through the Spirit, by faith, are waiting for the hope of righteousness. For in Christ Jesus neither circumcision nor uncircumcision means anything, but faith working through love.
Galatians 6:12-15 Those who desire to make a good showing in the flesh try to compel you to be circumcised, simply that they may not be persecuted for the cross of Christ. For those who are/have been circumcised do not even keep the Law themselves, but they desire to have you circumcised, that they may boast in your flesh. But may it never be that I should boast, except in the cross of our Lord Jesus Christ, through which the world has been crucified to me, and I to the world. For neither is circumcision anything, nor uncircumcision, but a new creation.
 
 
 Paul Stumbles: food sacrificed to idols?
Acts 15:23-29 …and they sent this letter by them, “The apostles and the brethren who are elders, to the brethren in Antioch and Syria and Cilicia who are from the Gentiles, greetings. Since we have heard that some of our number to whom we gave no instruction have disturbed you with their words, unsettling your souls, it seemed good to us, having become of one mind, to select men to send to you with our beloved Barnabas and Paul, men who have risked their lives for the name of our Lord Jesus Christ. Therefore we have sent Judas and Silas, who themselves will also report the same things by word of mouth. For it seemed good to the Holy Spirit and to us to lay upon you no greater burden than these essentials: that you abstain from things sacrificed to idols and from blood and from things strangled and from fornication; if you keep yourselves free from such things, you will do well. Farewell.”
Acts 21:25 But concerning the Gentiles who have believed, we wrote, having decided that they should abstain from meat sacrificed to idols and from blood and from what is strangled and from fornication.
I Corinthians 8 Now concerning things sacrificed to idols, we know that we all have knowledge. Knowledge makes arrogant, but love edifies. If any one supposes that he knows anything, he has not yet known as he ought to know; but if any one loves God, he is known by Him. Therefore concerning the eating of things sacrificed to idols, we know that there is no such thing as/real existence of an idol in the world, and that there is no God but one. For even if there are so-called gods whether in heaven or on earth, as indeed there are many gods and many lords, yet for us there is but one God, the Father, from whom are all things, and we exist for Him; and one Lord, Jesus Christ, through whom are all things, and we exist through Him. However not all men have this knowledge; but some, being accustomed to the idol until now, eat food as if it were sacrificed to an idol; and their conscience being weak is defiled. But food will not commend us to God; we are neither the worse if we do not eat, nor the better if we do eat. But take care lest this liberty of yours somehow become a stumbling block to the weak. For if someone sees you, who have knowledge, dining in an idol's temple, will not his conscience, if he is weak, be strengthened to eat things sacrificed to idols? For through your knowledge he who is weak is ruined, the brother for whose sake Christ died. And thus, by sinning against the brethren and wounding their conscience when it is weak, you sin against Christ. Therefore, if food causes my brother to stumble, I will never eat meat again, that I might not cause my brother to stumble.
I Corinthians 10:18-32 Look at the nation of Israel; are not those who eat the sacrifices sharers in the altar? What do I mean then? That a thing sacrificed to idols is anything, or that an idol is anything? No, but I say that the things which the Gentiles sacrifice, they sacrifice to demons, and not to God; and I do not want you to become sharers in demons. You cannot drink the cup of the Lord and the cup of demons; you cannot partake of the table of the Lord and the table of demons. Or do we provoke the Lord to jealousy? We are not stronger than He, are we? All things are lawful, but not all things are profitable. All things are lawful, but not all things edify. Let no one seek his own good, but that of his neighbor. Eat anything that is sold in the meat market, without asking questions for conscience' sake; for the earth is the Lord's, and all it contains. If one of the unbelievers invites you, and you wish to go, eat anything that is set before you, without asking questions for conscience' sake. But if anyone should say to you, "This is meat sacrificed to idols," do not eat it, for the sake of the one who informed you, and for conscience' sake; [for the earth is the Lord's, and everything in it.] I mean not your own conscience, but the other man's; for why is my freedom judged by another's conscience? If I partake with thankfulness, why am I slandered concerning that for which I give thanks? Whether, then, you eat or drink or whatever you do, do all to the glory of God. Give no offense either to Jews or to Greeks or to the church of God.
Revelation 2:14 “But I have a few things against you, because you have there some who hold the teaching of Balaam, who kept teaching Balak to put a stumbling block before the sons of Israel, to eat things sacrificed to idols, and to commit acts of immorality/fornication.”
Revelation 2:20 “But I have this against you, that you tolerate the woman Jezebel, who calls herself a prophetess, and she teaches and leads My bond-servants astray, so that they commit acts of [sexual] immorality and eat things sacrificed to idols.”