'Overflow' in the Bible
You brood of vipers, how can you speak good things when you are evil? For the mouth speaks out of that which fills the heart.
The [intrinsically] good man produces what is good and honorable and moral out of the good treasure [stored] in his heart; and the [intrinsically] evil man produces what is wicked and depraved out of the evil [in his heart]; for his mouth speaks from the overflow of his heart.
But the free gift [of God] is not like the trespass [because the gift of grace overwhelms the fall of man]. For if many died by one man’s trespass [Adam’s sin], much more [abundantly] did God’s grace and the gift [that comes] by the grace of the one Man, Jesus Christ, overflow to [benefit] the many.
What shall we say [to all this]? Should we continue in sin and practice sin as a habit so that [God’s gift of] grace may increase and overflow?
For just as Christ’s sufferings are ours in abundance [as they overflow to His followers], so also our comfort [our reassurance, our encouragement, our consolation] is abundant through Christ [it is truly more than enough to endure what we must].
And may the Lord cause you to increase and excel and overflow in love for one another, and for all people, just as we also do for you;