'Proofs' in the Bible

who came to Jesus at night and said to Him, “Rabbi (Teacher), we know [without any doubt] that You have come from God as a teacher; for no one can do these signs [these wonders, these attesting miracles] that You do unless God is with him.”

But many from the crowd believed in Him. And they kept saying, “When the Christ comes, will He do more signs and exhibit more proofs than this Man?”

To whom also he shewed himself alive after his passion by many infallible proofs, being seen of them forty days, and speaking of the things pertaining to the kingdom of God:

Saul, however, gained more and more influence, and as for the Jews living in Damascus, he bewildered them with his proofs that Jesus is the Christ.

trying to learn [by experience] what is pleasing to the Lord [and letting your lifestyles be examples of what is most acceptable to Him—your behavior expressing gratitude to God for your salvation].