Luke 18:29
And he said unto them, Verily I say unto you, There is no man that hath left house, or parents, or brethren, or wife, or children, for the kingdom of God’s sake, And he said unto them, Verily I say unto you, There is no man that hath left house, or parents, or brethren, or wife, or children, for the kingdom of God’s sake,
The saying belongs to the exchange that leads directly into the parable of the laborers. Following God's kingdom can require leaving house and home, parents, brethren, wife, children, possessions and lands for the kingdom of God's sake. Such leaving can come through bitter opposition that tests whether faith is genuine.
The saying is part of Jesus' promise to those who leave what they have for the kingdom's sake, giving hope and encouragement to those who leave family or home. That hope had been nearly forgotten by those it was meant to encourage. The verse itself holds out the promise without spelling out its details. In its setting it helps correct a grasping, mercenary expectation of reward by showing that God's favor and the reward of the righteous are not earned by works.
Those who understand Christ's sacrifice to save them will count no sacrifice too great and will place all they are and possess at His feet. Earthly treasures and attachments must not be held above the eternal life God offers, for those unwilling to surrender them turn away sorrowful instead of receiving the crown of life.