The effort of giving, using, or spending of time,
energy, talents, strengths, and gifts

For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life everlasting.
And let us not be weary in well doing: for in due season we shall reap, if we faint not. As we have therefore opportunity,
let us do good unto all men, especially unto them who are of the household of faith.
Galatians 6:8–10