Gentile converts were to be circumcised after the Law of Moses,
and to observe the Law, we find, that after much disputing, the
point was settled by James by quotation from Amos.

The Bereans are highly extolled (Acts 17: 11,) for searching the
Scriptures, i.e. the Old Testament, daily, in order to find out
whether the things preached to them by the Apostles were so, or no:
who if they had not proved these things, i.e. Christianity from the
Old Testament, ought, according to their own principles, to have
been rejected by the Bereans, as teachers of false doctrine.

Paul, when accused before Agrippa by the Jews, said (Acts 26; 6,)
“I stand, and am judged for the hope of the promise made of God
unto our fathers,” i.e. for teaching Christianity, or the true doctrine
of the Old Testament, and to this accusation he pleads guilty, by
declaring in the fullest manner, that he taught nothing but the
Doctrines of the Old Testament. “Having therefore (says he)
obtained help of God, I continue unto this day, witnessing both to
small, and great, saying now other things than those which the
Prophets, and Moses did say should come, that the Christ should
suffer, and that he should be the first who should rise from the
Dead, and should show light unto the People, and unto the
Gentiles.”

The Author of the first Epistle to the Cor. says, 15 ch. v. 4, that
“Jesus rose again from the dead the third day, according to the
Scriptures,” that is, according to the Old Testament, and he is
supposed to ground this on the history of the prophet Jonas, who
was three days and three nights in the fish's belly: though the cases
do not seem to be parallel, for Jesus being buried on Friday