Return to me, and I will return to you

Malachi 3:7-15
Return to me, and I will return to you, says the Lord of hosts.
Man robbed God in their tithes and contributions.
Bring the full tithes into the storehouse, that there may be food in my house. And thereby put me to the test, says the Lord of hosts, if I will not open the windows of heaven for you and pour down for you a blessing until there is no more need.
Why?
God gives them all they have, yet they rob him even of his legal dues. Anything given to God is only a small return on all that people owe him. To hold back from giving, through self-interest, is to deprive themselves of all the good things God would otherwise give them.
First man has to return to God, then God will return. Actually God will send messenger to proclaim his message.
All I have is the blessing from the Lord, so legal to sent tithe to the Lord. This is the responsibility to a Christian and the faith behavior to the Lord.
Put God at the first priority, God will put me at first priority. God is the fountain of blessing.
How?
Return to God and send tithe to the house of God.