4 John appeared, baptizing in the wilderness and proclaiming a baptism of repentance for the forgiveness of sins. 5 And all the country of Judea and all Jerusalem were going out to him and were being baptized by him in the river Jordan, confessing their sins. 6 Now John was clothed with camel's hair and wore a leather belt around his waist and ate locusts and wild honey. 7 And he preached, saying, "After me comes he who is mightier than I, the strap of whose sandals I am not worthy to stoop down and untie. 8 I have baptized you with water, but he will baptize you with the Holy Spirit."
Matthew Henry's Commentary on Mark 1:4-8
Commentary on Mark 1:1-8
(Read Mark 1:1-8)
Isaiah and Malachi each spake concerning the beginning of the gospel of Jesus Christ, in the ministry of John. From these prophets we may observe, that Christ, in his gospel, comes among us, bringing with him a treasure of grace, and a sceptre of government. Such is the corruption of the world, that there is great opposition to his progress. When God sent his Son into the world, he took care, and when he sends him into the heart, he takes care, to prepare his way before him. John thinks himself unworthy of the meanest office about Christ. The most eminent saints have always been the most humble. They feel their need of Christ's atoning blood and sanctifying Spirit, more than others. The great promise Christ makes in his gospel to those who have repented, and have had their sins forgiven them, is, they shall be baptized with the Holy Ghost; shall be purified by his graces, and refreshed by his comforts. We use the ordinances, word, and sacraments without profit and comfort, for the most part, because we have not of that Divine light within us; and we have it not because we ask it not; for we have his word that cannot fail, that our heavenly Father will give this light, his Holy Spirit, to those that ask it.