Acts 1:22
beginning at the baptism of John unto that same day that he was taken up from us - must one be ordained to bear witness with us of his resurrection."
Acts 1:2
until the day in the which he was taken up; after that he, through the holy ghost, had given commandments unto the apostles, which he had chosen:
Acts 1:8-9
but ye shall receive power of the holy ghost which shall come on you. And ye shall be witnesses unto me in Jerusalem, and in all Jewry, and in Samaria, and even unto the world's end."
Acts 4:33
And with great power gave the apostles witness of the resurrection of the Lord Jesus. And great grace was with them all.
Matthew 3:1-17
In those days John the Baptist came, and preached in the wilderness of Jewry,
Mark 1:1-8
The beginning of the Gospel of Jesus Christ the son of God.
Luke 3:1-18
In the fifteenth year of the reign of Tiberius the Emperor, Pontius Pilate being leftenant of Jewry, and Herod being Tetrarch of Galilee, and his brother Philip Tetrarch in Ituraea, and in the region of Trachonitis, and Lysanias the Tetrarch of Abilene:
John 1:28-51
These things were done in Bethabara beyond Jordan, where John did baptise.
John 15:27
And ye shall bear witness also, because ye have been with me from the beginning.
Acts 13:24-25
when John had first preached before his coming the baptism of repentance to Israel.
Hebrews 2:3
how shall we escape if we despise so great salvation? Which at the first began to be preached of the Lord himself, and afterward was confirmed unto us ward, by them that heard it;