But when thou doest alms, let not thy left hand know what thy right…

And he gave him tithes of all. (Genesis 14:20) — Abram gave tithes to Melchizedek, king of Salem.

Genesis 14:20 (KJV)

And of all that thou shalt give me I will surely give the tenth unto thee. (Genesis 28:22)

Genesis 28:22 (KJV)

And all the tithe of the land, whether of the seed of the land, or of the fruit of the tree, is the LORD's: it is holy unto the LORD. (Leviticus 27:30)

Leviticus 27:30 (KJV)

Will a man rob God? Yet ye have robbed me. But ye say, Wherein have we robbed thee? In tithes and offerings. (Malachi 3:8)

Malachi 3:8 (KJV)

Bring ye all the tithes into the storehouse... and prove me now herewith, saith the LORD of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that there shall not be room enough to receive it. (Malachi 3:10)

Malachi 3:10 (KJV)

Woe unto you, scribes and Pharisees, hypocrites! for ye pay tithe of mint and anise and cummin, and have omitted the weightier matters of the law, judgment, mercy, and faith. (Matthew 23:23)

Matthew 23:23 (KJV)