1 Kings 18:21
And Elijah came unto all the people, and said, How long halt ye between two opinions? if the LORD [be] God, follow him: but if Baal, [then] follow him. And the people answered him not a word.
Their heart is divided; now shall they be found faulty: he shall break down their altars, he shall spoil their images.
No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
Watch and pray, that ye enter not into temptation: the spirit indeed [is] willing, but the flesh [is] weak.
A double minded man [is] unstable in all his ways.
Therefore to him that knoweth to do good, and doeth [it] not, to him it is sin.