Peter began to say to him, “See, we have left everything and followed you.”
Mark shows us what earnest seeking looks like: the man ran, knelt, and spoke weightily about eternal life, no shame, no delay, no private conference in darkness. He laid aside his ruler's dignity to learn from Christ, and his haste itself proved he meant business with his soul.
AI summary
Commenting on Mark 10:17-31
But he shall receive an hundred fold now in this time,.... Not that he should have an hundred houses, brethren, &c. but that he should enjoy that even in this present life, which was an hundred times better than any of the things mentioned; namely, houses, and brethren, and sisters, and mothers, and children, and lands; See Gill on Mat 19:29 it is added here, with persecutions.
The apostles having heard our Saviour's command to sell all and give to the poor, St. Peter, in the name of the rest, tells Christ, that they had left all to follow him. Where note, How St. Peter magnifies that little which he had left for Christ, and ushers it in with a note of admiration: Lo! we have left all.