'Thoroughly' in the Bible

Thus says the Lord of hosts,“They will thoroughly gather like [fruit on] a vine what is left of Israel;Pass your hand [over the vine] again and again [Babylon, tool of destruction] like a grape gatherer,Over the branches [stripping the tendrils off the vine].”

For if you thoroughly change your ways and your behavior, if you thoroughly and honestly practice justice between a man and his neighbor,

“Their Redeemer is strong; the Lord of hosts is His name.He will most certainly plead their case and defend their causeSo that He may bring rest to their land,But turmoil to the inhabitants of Babylon.