Treasury of Scripture Knowledge
On the morrow, as they went on their journey and drew near unto the city, Peter went up upon the housetop to pray about the sixth hour;
Then certain men who came down from Judaea taught the brethren and said, Except ye be circumcised after the manner of Moses, ye cannot be saved.
And when they heard it, they glorified the Lord and said unto him, Thou seest, brother, how many thousands of Jews there are who have believed, and they are all zealous of the law;
For before certain ones came from James, he ate with the Gentiles, but when they were come, he withdrew and separated himself, fearing those who were of the circumcision.
1 Samuel 17:29
And David said, What have I now done? Is there not a cause?