that certain.

Jeremiah 23:16
This is what the LORD of Hosts says: "Do not listen to the words of the prophets who prophesy to you. They are filling you with false hopes. They speak visions from their own minds, not from the mouth of the LORD.

Galatians 2:4
This issue arose because some false brothers were brought in under false pretenses to spy on our freedom in Christ Jesus, in order to enslave us.

Galatians 5:4, 12
You who are trying to be justified by the Law have been severed from Christ; you have fallen away from grace. . . .

2 Timothy 2:14
Remind the believers of these things, charging them before God to avoid quarreling over words; this is in no way profitable, and leads its listeners to ruin.

Titus 1:10, 11
For many are rebellious and full of empty talk and deception, especially those of the circumcision, . . .

1 John 2:19
They went out from us, but they did not belong to us. For if they had belonged to us, they would have remained with us. But their departure made it clear that none of them belonged to us.

Ye must.

Acts 15:1, 9, 10
Then some men came down from Judea and were teaching the brothers, "Unless you are circumcised according to the custom of Moses, you cannot be saved." . . .

Galatians 2:3, 4
Yet not even Titus, who was with me, was compelled to be circumcised, even though he was a Greek. . . .

Galatians 6:12, 13
Those who want to make a good impression outwardly are trying to compel you to be circumcised. They only do this to avoid persecution for the cross of Christ. . . .