9 Heb “if listening you listen to the voice of.” The infinitive absolute is used for emphasis, which the translation indicates with “carefully.” The idiom “listen to the voice” means “obey.”
10 Heb “the Lord your God.” See note on “he” in .
11 Heb “by being careful to do.”
12 Heb “commanding” (so ); “which I enjoin you today.”

In other versions

if only you will strictly obey the voice of the Lord your God, being careful to do all this commandment that I command you today.

if only you fully obey the Lord your God and are careful to follow all these commands I am giving you today.

if only you obey the Lord your God and are careful to follow every one of these commands I am giving you today.

You will receive this blessing if you are careful to obey all the commands of the Lord your God that I am giving you today.

If only you listen well to the voice of Yahweh your God by observing diligently all of these commandments that I am commanding you today.

Only if thou carefully hearken unto the voice of the Lord thy God, to observe to do all these commandments which I command thee this day.

Public Domain