John Mark
Mark 1:4KJV·traditional attribution

John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins.

Matthew Henry Presbyterian

We may observe here, I. What the New Testament is - the divine testament, to which we adhere above all that is human; the new testament, which we advance above that which was old. It is the gospel of Jesus Christ the Son of God, Mar 1:1. 1. It is gospel; it is God's word, and is faithful and true; see Rev 19:9; Rev 21:5; Rev 22:6.

Commenting on Mark 1:1-8

Albert Barnes Presbyterian

Verse 4. (d) "John did" (1) "baptism of repentance" or, "unto repentance" (e) "remission of sins"

William Burkitt Anglican

A twofold account is here given of St. John's execution of his ministry and office: First, his baptising; secondly, his preaching. John did baptise; that is, admit persons into the church, by washing them with water: John baptised into the name of Christ, who was to come; the apostles baptised into the name of Christ, already come. The second part of his office was preaching.