1 Corinthians 9:20
And I became to the Jews as a Jew, in order that I might gain the Jews: to those under law, as under law, not being myself under law, in order that I might gain those under law:
Acts 16:3
Him would Paul have go forth with him, and took him and circumcised him on account of the Jews who were in those places, for they all knew his father that he was a Greek.
Acts 21:20-26
And they having heard it glorified God, and said to him, Thou seest, brother, how many myriads there are of the Jews who have believed, and all are zealous of the law.
Acts 17:2-3
And according to Paul's custom he went in among them, and on three sabbaths reasoned with them from the scriptures,
Acts 18:18
And Paul, having yet stayed there many days, took leave of the brethren and sailed thence to Syria, and with him Priscilla and Aquila, having shorn his head in Cenchrea, for he had a vow;
Romans 3:19
Now we know that whatever the things the law says, it speaks to those under the law, that every mouth may be stopped, and all the world be under judgment to God.
Romans 6:14-15
For sin shall not have dominion over you, for ye are not under law but under grace.
Romans 11:14
if by any means I shall provoke to jealousy them which are my flesh, and shall save some from among them.
Galatians 4:5
that he might redeem those under law, that we might receive sonship.
Galatians 4:21
Tell me, ye who are desirous of being under law, do ye not listen to the law?
Galatians 5:18
but if ye are led by the Spirit, ye are not under law.