Romans 2:18

so that you may know the certainty about the things you have been taught.

“You search the Scriptures because you think that in them you have eternal life; it is these that bear witness about Me;

“Do not think that I will accuse you to the Father; the one who accuses you is Moses, in whom you have set your hope.

What then? Are we better? Not at all; for we have already charged that both Jews and Greeks are all under sin;

so that you may approve the things that are excellent, in order to be sincere and without fault until the day of Christ,