TSK
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"'When you reap the harvest of your land, you shall not wholly reap into the corners of your field, neither shall you gather the gleanings of your harvest: you shall leave them for the poor, and for the foreigner. I am Yahweh your God.'"
When you reap your harvest in your field, and have forgot a sheaf in the field, you shall not go again to get it: it shall be for the foreigner, for the fatherless, and for the widow; that Yahweh your God may bless you in all the work of your hands.
Ruth the Moabitess said to Naomi, "Let me now go to the field, and glean among the ears of grain after him in whose sight I shall find favor." She said to her, "Go, my daughter."
When she had risen up to glean, Boaz commanded his young men, saying, "Let her glean even among the sheaves, and don't reproach her.