2 Tim 3:16, 2 Pt 1:21, 2 Sam 23:2, 2 Tim 3:15, Jn 20:31
The Old Testament prophets, with the help of the Holy Spirit, wrote the Bible for us. (1 Pt 1:12, 2 Tim 3:16, 2 Pt 1:21, 2 Sam 23:2)
1 Pt 1:12 Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven; which things the angels desire to look into.
2 Tim 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
2 Pt 1:21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.
2 Sam 23:2 The Spirit of the Lord spake by me, and his word was in my tongue.
The Bible explains that people are saved by believing in Jesus as the Christ. (2 Tim 3:15, Jn 20:31)
2 Tim 3:15 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 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.