Deuteronomy 15:6

6 (for the Lord thy God has blessed thee in the way of which he spoke to thee,) then thou shalt lend to many nations, but thou shalt not borrow; and thou shalt rule over many nations, but they shall not rule over thee.

Deuteronomy 15:6 Meaning and Commentary

Deuteronomy 15:6

For the Lord thy God blesseth thee, as he promised thee
He is faithful that has promised, and he always gives the blessing he promises according to the nature of the promise; if absolute, and without conditions, he gives it without respect to any; but if conditional, as the promises of temporal good things to Israel were, he gives according as the condition is performed:

and thou shalt lend unto many nations, but thou shall not borrow;
signifying they should be so rich and increased in goods, and worldly substance, that they should be able to lend to their neighbouring nations round about, but should stand in no need of borrowing of any of them. This is sometimes said of the language of these people, the Hebrew language, that it lends to all, but borrows of none, being an original primitive language; see ( Deuteronomy 28:12 )

and thou shalt reign over many nations:
which was fulfilled in the times of David and Solomon:

but they shall not reign over thee;
that is, as long as they observed the commands of God; otherwise, when they did not, they were carried captive into other countries, and other people reigned over them, as at this day.

Deuteronomy 15:6 In-Context

4 For there shall not be a poor person in the midst of thee, for the Lord thy God will surely bless thee in the land which the Lord thy God gives thee by inheritance, that thou shouldest inherit it.
5 And if ye shall indeed hearken to the voice of the Lord your God, to keep and do all these commandments, as many as I charge thee this day,
6 (for the Lord thy God has blessed thee in the way of which he spoke to thee,) then thou shalt lend to many nations, but thou shalt not borrow; and thou shalt rule over many nations, but they shall not rule over thee.
7 And if there shall be in the midst of thee a poor of thy brethren in one of thy cities in the land, which the Lord thy God gives thee, thou shalt not harden thine heart, neither shalt thou by any means close up thine hand from thy brother who is in want.
8 Thou shalt surely open thine hands to him, and shalt lend to him as much as he wants according to his need.

The Brenton translation of the Septuagint is in the public domain.