Charles Spurgeon Commentary Mark 10:29-31

"Jesus said, Verily I say unto you, There is no man that hath left house, or brethren, or sisters, or mother, or father, or children, or lands, for my sake, and for the gospel`s sake, but he shall receive a hundredfold now in this time, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the world to come eternal life. But many [that are] first shall be last; and the last first." — Mark 10:29-31 (ASV)

In the final account, it shall be found that no one has been a loser through giving up anything for the Lord Jesus Christ though He has His own method of deciding who are to be first and who are to be last.