Doing something heartily
There's a noteworthy difference between, "doing something," and "doing something heartily, as to the Lord."
The assumption, that everybody will "do something," is fair.
However, never assume people will do things "heartily, as to the Lord."
Because most people "DO," for the reward of getting. We must teach, train and compel Christians to "DO," as service toward the Lord, and then praise Him for the reward of the eternal inheritance we have in Christ.
Colossians 3:23-24 And whatsoever ye do, do it heartily, as to the Lord, and not unto men; Knowing that of the Lord ye shall receive the reward of the inheritance: for ye serve the Lord Christ.