There went out to him all Judea, &c. So disposed were the people to receive his baptism. See note on Matthew 3:5. The latchet of whose shoes, &c. That is, whose servant I am not worthy to be, or to perform for him the meanest offices. He shall baptize you with the Holy Ghost The promise of which is made to you and your children, Acts 2:39; where see the note, and on Matthew 3:11.
Related Commentaries of Mark 1:5
Mark 1:5-8
5 And there went out unto him all the land of Judaea, and they of Jerusalem, and were all baptized of him in the river of Jordan, confessing their sins.
6 And John was clothed with camel's hair, and with a girdle of a skin about his loins; and he did eat locusts and wild honey;
7 And preached, saying, There cometh one mightier than I after me, the latchet of whose shoes I am not worthy to stoop down and unloose.
8 I indeed have baptized you with water: but he shall baptize you with the Holy Ghost.