Второзаконие 10:18

As such, Jehovah does justice to the defenceless (orphan and widow), and exercises a loving care towards the stranger in his oppression. For this reason the Israelites were not to close their hearts egotistically against the stranger (cf. Exo 22:20). This would show whether they possessed any love to God, and had circumcised their hearts (cf. Jo1 3:10, Jo1 3:17).

Moses having, in the foregoing chapter, reminded them of their own sin, as a reason why they should not depend upon their own righteousness, in this chapter he sets before them God's great mercy to them, notwithstanding their provocations, as a reason why they should be more obedient for the future. I. He mentions divers tokens of God's favour and reconciliation to them, never to be forgotten. (1.) The renewing of the tables of the covenant (Deu 10:1-5). (2.) Giving orders for their progress towards Canaan (Deu 10:6, Deu 10:7). (3.) Choosing the tribe of Levi for his own (Deu 10:8, Deu 10:9). (4.) And continuing the priesthood after the death of Aaron (Deu 10:6). (5.) Owning and accepting the intercession of Moses for them (Deu 10:10, Deu 10:11). II. Hence he infers what obligations they lay under to fear, and love, and serve God, which he presses upon them with many motives (Deu 10:12, etc.).

10:18 foreigners (literally sojourners): “A rabble of non-Israelites” (Exod 12:38) came out of Egypt with the Israelites, and others later took up residence in Israel for various reasons. Some of these non-Israelites had no intention of becoming part of the covenant nation, but other foreigners, while not citizens of Israel, were God-fearers or potential proselytes. They lacked full equality with the Israelites and thus were often victims of neglect and discrimination.