Nehemiah 9, 10
It seems that everyone likes to give God the last consideration rather than the first. The exiles of Jerusalem recommitted to God’s law and precepts in the revival led by Ezra and Nehemiah. Giving God the first and best was a fundamental element of that commitment.
We give God the first day of the week, the first tenth of our income, our first child, the first part of our day etc. … He gave His Firstborn, preeminent Son to us to redeem us from our sin and death penalty.