Berean Study Bible
Do not let your zeal subside; keep your spiritual fervor, serving the Lord.

King James Bible
Not slothful in business; fervent in spirit; serving the Lord;

American Standard Version
in diligence not slothful; fervent in spirit; serving the Lord;

Darby Bible Translation
as to diligent zealousness, not slothful; in spirit fervent; serving the Lord.

Douay-Rheims Bible
In carefulness not slothful. In spirit fervent. Serving the Lord.

English Revised Version
in diligence not slothful; fervent in spirit; serving the Lord;

Young's Literal Translation
in the diligence not slothful; in the spirit fervent; the Lord serving;