There is no motivation more delightful than this:
knowing the one you are working for is watching
and pleased and taking note of every little thing
so that, in due time, he may properly reward your efforts.
"Whatever you do, work heartily,
as for the Lord and not for men,
knowing that from the Lord
you will receive the inheritance as your reward.
You are serving the Lord Christ."
Colossians 3:23-24 ESV