The writers of the new testament gospels are anonymous.
We often presume the gospels were written by the apostles. Matthew, Mark....But were they?
Research and find out.
Jesus was the Messiah prophesied in the old testament and he brought the new covenant.
Jesus used many parables from the old testament to preach the coming of the new covenant. As Messiah the fulfillment of those prophecies were also part of his teachings.
Jesus quoted from 24 different Old Testament books
In the temple most of the Jews who attended unless they were well off, and those weren't many, were illiterate.
The Tanakh was read to them.
Mark 16:15 And He said to them, “Go into all the world and preach the gospel to all creation. 16 He who has believed and has been baptized shall be saved; but he who has disbelieved shall be condemned. 17 These signs will accompany those who have believed: in My name they will cast out demons, they will speak with new tongues; 18 they will pick up serpents, and if they drink any deadly
poison, it will not hurt them; they will lay hands on the sick, and they will recover.”
Luke 24:45 Then He opened their minds to understand the Scriptures, 46 and He said to them, “Thus it is written, that the Christ would suffer and rise again from the dead the third day, 47 and that repentance for forgiveness of sins would be proclaimed in His name to all the nations, beginning from Jerusalem. 48 You are witnesses of these things. 49 And behold, I am sending forth the promise of My Father upon you; but you are to stay in the city until you are clothed with power from on high”
Scriptures=
γραφή (graphē)
Strong: G1124
GK: G1210
a writing; in NT the Holy Scriptures, the Jewish Scriptures, or Books of the Old Testament,
Mt. 21:42;
Jn. 5:39, et al.; by synec. doctrines, declarations, oracles, or promises contained in the sacred books,
Mt. 22:29;
Mk. 12:24, et al.; spc. a prophecy,
Mt. 26:54;
Mk. 14:49;
Lk. 4:21;
24:27,
32; with the addition of προφητική,
Rom. 16:26; of τῶν προφητῶν,
Mt. 26:56
Acts 1:4 Gathering them together, He commanded them not to leave Jerusalem, but to wait for what the Father had promised,“Which,” He said, “you heard of from Me; 5 for John baptized with water, but you will be baptized with the Holy Spirit not many days from now.” So when they had come together, they were asking Him, saying, “Lord, is it at this time You are restoring the kingdom to Israel?” 7 He said to them, “It is not for you to know times or epochs which the Father has fixed by His own authority; 8 but you will receive power when the Holy Spirit has come upon you; and you shall be My witnesses both in Jerusalem, and in all Judea and Samaria, and even to the remotest part of the earth”
John 20:21 So Jesus said to them again, “Peace be with you; as the Father has sent Me, I also send you.” 22 And when He had said this, He breathed on them and *said to them, “Receive the Holy Spirit. 23 If you forgive the sins of any, their sins have been forgiven them; if you retain the sins of any, they have been retained.” [source:
The Great Commission]