Beg pardon, but not ONE of the verses above supports your assertion,
"God's grace is given to those who truly love Him, and keep His commandments..."
Mercy≠ Grace
And Grace cannot be earned, or it is not Grace:
6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then it is no more grace: otherwise work is no more work. (from Rom. 11)
-JGIG