Charles Spurgeon Commentary Mark 1:15

"and saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe in the gospel." — Mark 1:15 (ASV)

It is clear, from this passage, that our Lord exhorted men to repent, and to believe the gospel. There are some, who profess to be his followers, who will not allow us to do this. We may teach men, and warn them, they say, but we must not exhort them to repent and believe. Well, as the contention of these people is not in accordance with the Scriptures, we are content to follow the Scriptures, and to do as Jesus did, so we will say to sinners, Repent ye, and believe the gospel.