If we believe that Jesus of Nazareth is the only begotten Son of God and that He came into this world and went to the cross of Calvary and died for our sins and rose again in order to justify us and to give us life anew and prepare us for heaven-if you really believe that, there is only one inevitable deduction, namely that He is entitled to the whole of our lives, without any limit whatsoever.
David Martyn Lloyd-Jones, Studies in the Sermon on the Mount Volume Two, (Eerdmans, 1960), pg 282