New King James Version
(for the LORD your God is a merciful God), He will not forsake you nor destroy you, nor forget the covenant of your fathers which He swore to them.

King James Bible
(For the LORD thy God is a merciful God;) he will not forsake thee, neither destroy thee, nor forget the covenant of thy fathers which he sware unto them.

American Standard Version
for Jehovah thy God is a merciful God; he will not fail thee, neither destroy thee, nor forget the covenant of thy fathers which he sware unto them.

Berean Study Bible
For the LORD your God is a merciful God; He will not abandon you or destroy you or forget the covenant with your fathers, which He swore to them by oath.

Douay-Rheims Bible
Because the Lord thy God is a merciful God: he will not leave thee, nor altogether destroy thee, nor forget the covenant, by which he swore to thy fathers.

English Revised Version
for the LORD thy God is a merciful God; he will not fail thee, neither destroy thee, nor forget the covenant of thy fathers which he sware unto them.

World English Bible
for Yahweh your God is a merciful God; he will not fail you, neither destroy you, nor forget the covenant of your fathers which he swore to them.

Young's Literal Translation
for a merciful God is Jehovah thy God; He doth not fail thee, nor destroy thee, nor forget the covenant of thy fathers, which He hath sworn to them.

Deuteronomy 4:31 Additional Translations ...