9 Bible Verses about Divided Hearts

Then Samuel said to all the house of Israel, “If you are returning to the Lord with all your heart, remove the foreign gods and the Ashtaroth (pagan goddesses) from among you and direct your hearts to the Lord and serve Him only; and He will rescue you from the hand of the Philistines.”

Elijah approached all the people and said, “How long will you hesitate between two opinions? If the Lord is God, follow Him; but if Baal, follow him.” But the people [of Israel] did not answer him [so much as] a word.

Then the Lord said,

“Because this nation approaches [Me only] with their words
And honors Me [only] with their lip service,
But they remove their hearts far from Me,
And their reverence for Me is a tradition that is learned by rote [without any regard for its meaning],

“No one can serve two masters; for either he will hate the one and love the other, or he will be devoted to the one and despise the other. You cannot serve God and mammon [money, possessions, fame, status, or whatever is valued more than the Lord].

being a double-minded man, unstable and restless in all his ways [in everything he thinks, feels, or decides].

You adulteresses [disloyal sinners—flirting with the world and breaking your vow to God]! Do you not know that being the world’s friend [that is, loving the things of the world] is being God’s enemy? So whoever chooses to be a friend of the world makes himself an enemy of God.

Come close to God [with a contrite heart] and He will come close to you. Wash your hands, you sinners; and purify your [unfaithful] hearts, you double-minded [people].

Do not love the world [of sin that opposes God and His precepts], nor the things that are in the world. If anyone loves the world, the love of the Father is not in him.

‘I know your deeds, that you are neither cold (invigorating, refreshing) nor hot (healing, therapeutic); I wish that you were cold or hot. So because you are lukewarm (spiritually useless), and neither hot nor cold, I will vomit you out of My mouth [rejecting you with disgust]. Because you say, “I am rich, and have prospered and grown wealthy, and have need of nothing,” and you do not know that you are wretched and miserable and poor and blind and naked [without hope and in great need], read more.
I counsel you to buy from Me gold that has been heated red hot and refined by fire so that you may become truly rich; and white clothes [representing righteousness] to clothe yourself so that the shame of your nakedness will not be seen; and healing salve to put on your eyes so that you may see.