For I, the LORD, do not change,
and you, sons of Jacob, do not cease to be.
Since the days of your ancestors you have turned aside
from my statutes and have not kept them.
Return to me, that I may return to you,
says the LORD of hosts.
But you say, “Why should we return?”
Can anyone rob God? But you are robbing me!
And you say, “How have we robbed you?”
Of tithes and contributions!
...
Malachi 3:6–12