Jn 20:31, Jn 5:39, Lk 24:25-27, 44-45
The Old Testament prophesies of the coming Christ and salvation through him. That Christ is Jesus. (2 Tim 3:14-15, Jn 5:39, Lk 24:25-27,44-45)
2 Tim 3:14 But continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them; 15 And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
Jn 5:39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me.
Lk 24:25 Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken: 26 Ought not Christ to have suffered these things, and to enter into his glory? 27 And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself. 44 And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me. 45 Then opened he their understanding, that they might understand the scriptures,
The New Testament testifies that Christ has come and that Christ is Jesus. (Jn 20:31)
Jn 20:31 But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.