The Lord Jesus does not bid the laboring and heavy-laden "go and work." Those words would carry no comfort to heavy consciences - it would be like requiring labor from an exhausted man. No! He bids them "Come!" He does not say, "Pay Me what you owe." That demand would drive a broken heart into despair - it would be like claiming a debt from a ruined bankrupt. No! He says, "Come!" He does not say, "Stand still and wait." That command would only be a mockery - it would be like promising to give medicine at the end of a week to one at the point of death." No - He says, "Come!" Today; at once; without any delay,"Come unto Me!"
~ J.C. Ryle