1 Corinthians 9:20

Overview - 1 Corinthians 9
He shows his liberty;
and that the minister ought to live by the Gospel;
15 yet that himself has of his own accord abstained,
18 to be either chargeable unto them,
22 or offensive unto any, in matters indifferent.
24 Our life is like unto a race.
Treasury of Scripture Knowledge

1 Corinthians 9:20  (King James Version)
And unto the Jews I became as a Jew, that I might gain the Jews; to them that are under the law, as under the law, that I might gain them that are under the law;

Acts 16:3 ; Acts 17:2 Acts 17:3 18:18 21:20-26

are under
Romans 3:19 ; Romans 6:14 Romans 6:15 Galatians 4:5 Galatians 4:21 ; 5:18