Deuteronomy 24:19

24:19 Whenever you reap your harvest in your field and leave some unraked grain there, you must not return to get it; it should go to the resident foreigner, orphan, and widow so that the Lord your God may bless all the work you do.

Amos 2:7-8

2:7 They trample on the dirt-covered heads of the poor;

they push the destitute away.

A man and his father go to the same girl;

in this way they show disrespect for my moral purity.

2:8 They stretch out on clothing seized as collateral;

they do so right beside every altar!

They drink wine bought with the fines they have levied;

they do so right in the temple of their God!

Amos 5:11-12

5:11 Therefore, because you make the poor pay taxes on their crops

and exact a grain tax from them,

you will not live in the houses you built with chiseled stone,

nor will you drink the wine from the fine vineyards you planted.

5:12 Certainly I am aware of your many rebellious acts

and your numerous sins.

You torment the innocent, you take bribes,

and you deny justice to the needy at the city gate.