GOD'S WORD® Translation
Moses was a faithful servant in God's household. He told [the people] what God would say in the future.

American Standard Version
And Moses indeed was faithful in all his house as a servant, for a testimony of those things which were afterward to be spoken;

Berean Study Bible
Now Moses was faithful as a servant in all God’s house, testifying to what would be spoken later.

Douay-Rheims Bible
And Moses indeed was faithful in all his house as a servant, for a testimony of those things which were to be said:

English Revised Version
And Moses indeed was faithful in all his house as a servant, for a testimony of those things which were afterward to be spoken;

King James Bible
And Moses verily was faithful in all his house, as a servant, for a testimony of those things which were to be spoken after;

World English Bible
Moses indeed was faithful in all his house as a servant, for a testimony of those things which were afterward to be spoken,

Young's Literal Translation
and Moses indeed was stedfast in all his house, as an attendant, for a testimony of those things that were to be spoken,

Hebrews 3:5 Additional Translations ...