6 Bible Verses about Divided Hearts

No person can serve two masters, for he will either hate the one and love the other, or else he will cling to the one and look down on the other. You cannot serve God and material things [at the same time].

because he is double-minded and undecided in all that he does [i.e., he cannot make up his mind and follow through about anything].

You people who have become unfaithful to God, do you not know that being [intimate] friends with the world [of sin] means hostility toward God? Therefore, whoever determines to be an [intimate] friend of the world becomes an enemy of God.

Come close to God and He will come close to you. Wash your hands, you sinful people [i.e., this is an exhortation to repent of moral and spiritual corruption], and purify your hearts, you double-minded people.

You should not love the [godless] world, nor the things [i.e., the materialistic values] that are part of this [present] age. If any person loves the world, a [genuine] love for the Father is not in his heart.

I know about your deeds, that you are neither [spiritually] cold nor hot. I wish you were [either] cold or hot. But since you are lukewarm, and neither hot nor cold, I am about to vomit you out of my mouth. For you are saying, 'I am wealthy; I have made plenty of money and do not need anything.' But you do not know that you are [spiritually] wretched and miserable and poor and blind and naked.read more.
[Because of that], I advise you to buy from me gold, refined by fire, so that you will become rich; and white clothing to wear, so that you can cover yourself and not be seen as shamefully naked; and eye drops for your eyes, so that you can see. [Note: The foregoing all refer to taking measures for becoming more spiritual].