2 verses

1Cor 7:3

(NIV)
The husband should fulfil his marital duty to his wife, and likewise the wife to her husband.
(ESV)
The husband should give to his wife her conjugal rights, and likewise the wife to her husband.

Eph 6:7

(NIV)
Serve wholeheartedly, as if you were serving the Lord, not people,
(ESV)
rendering service with a good will as to the Lord and not to man,
Copyright information for NIV, ESV