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:
1 Corinthians 9:20 Cross References - Darby
Acts 16:3
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 17:2-3
Acts 18:18
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;
Acts 21:20-26
20 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.
21 And they have been informed concerning thee, that thou teachest all the Jews among the nations apostasy from Moses, saying that they should not circumcise their children, nor walk in the customs.
22 What is it then? a multitude must necessarily come together, for they will hear that thou art come.
23 This do therefore that we say to thee: We have four men who have a vow on them;
24 take these and be purified with them, and pay their expenses, that they may have their heads shaved; and all will know that [of those things] of which they have been informed about thee nothing is [true]; but that thou thyself also walkest orderly, keeping the law.
25 But concerning [those of] the nations who have believed, we have written, deciding that they should [observe no such thing, only to] keep themselves both from things offered to idols, and from blood, and from things strangled, and from fornication.
26 Then Paul, taking the men, on the next day, having been purified, entered with them into the temple, signifying the time the days of the purification would be fulfilled, until the offering was offered for every one of them.
Romans 3:19
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
Romans 11:14
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
5 that he might redeem those under law, that we might receive sonship.
Galatians 4:21
21 Tell me, ye who are desirous of being under law, do ye not listen to the law?
Galatians 5:18
18 but if ye are led by the Spirit, ye are not under law.