Would you insult the Almighty by offering Him the fruits of this frail body to atone for sin?
Supposing your queen were to send me a magnificent present, and I said to the royal messenger: “I certainly should not like to accept this from Her Majesty without giving her something in return.” Suppose I should send her a penny! How would the queen feel, if I were to insult her in that way? And what have we that we can offer to God in return for His free gift of salvation? Less than nothing. We must come and take salvation in God’s way.
“If you come to God as a beggar, you go away as a prince.”
If I work for a gift or attempt to give money for it, it ceases to be a gift. The only way to get a gift is to take it as a gift.
(Excerpts from God’s Abundant Grace by D.L Moody)