Berean Study Bible
Slaves, obey your earthly masters with respect and fear and sincerity of heart, just as you would obey Christ.

King James Bible
Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ;

American Standard Version
Servants, be obedient unto them that according to the flesh are your masters, with fear and trembling, in singleness of your heart, as unto Christ;

Darby Bible Translation
Bondmen, obey masters according to flesh, with fear and trembling, in simplicity of your heart as to the Christ;

Douay-Rheims Bible
Servants, be obedient to them that are your lords according to the flesh, with fear and trembling, in the simplicity of your heart, as to Christ:

English Revised Version
Servants, be obedient unto them that according to the flesh are your masters, with fear and trembling, in singleness of your heart, as unto Christ;

Young's Literal Translation
The servants! obey the masters according to the flesh with fear and trembling, in the simplicity of your heart, as to the Christ;