Leviticus 19:9–10

When harvesting, leave the edge of the field for the poor and the foreigner

9And when you reap the harvest of your land, you shall not finish reaping the edge of your field, and the gleanings of your harvest you shall not gather.

10And your vineyard you shall not strip bare, and the fallen grapes of your vineyard you shall not gather; for the poor and for the resident alien you shall leave them. I am YHWH your Elohim.

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In its context

7And if it is eaten at all on the third day, it is a repulsive thing; it will not be accepted.

8And whoever eats it shall bear his iniquity, for he has profaned what is holy to YHWH; and that person shall be cut off from their people.

…

11You shall not steal, and you shall not lie, and you shall not deceive one another.

12And you shall not swear by my name falsely, and so profane the name of your Elohim. I am YHWH.

Read all of Leviticus 19

Its words in the original

Justice and mercy