From us, God desires mercy, not sacrifice (Hosea 6.6; Matthew 9.13, 12.7). Let love motivate all that you say, think, and do, sacrifice included. Love is to be our power source, so that we can be like God. It's wonderful that God being love sets a kind of standard for the whole universe, making it clear that everything is to exist by love. I just can't think of a more perfect standard to uphold. Our God is just wonderful.