A double minded man is inconstant in all his ways.

James 4:8 Draw nigh to God: and he will draw nigh to you. Cleanse your hands, ye sinners, and purify your hearts, ye double minded.

1 Kings 18:21 And Elias coming to all the people, said: How long do you halt between two sides? If the Lord be God, follow him: but if Baal, then follow him. And the people did not answer him a word.

2 Kings 17:33,41 And when they worshipped the Lord, they served also their own gods, according to the custom of the nations out of which they were brought to Samaria: . . .

Isaiah 29:13 And the Lord said: Forasmuch as this people draw near me with their mouth, and with their lips glorify me, but their heart is far from me, and they have feared me with the commandment and doctrines of men:

Hosea 7:8-11 Ephraim himself is mixed among the nations: Ephraim is become as bread baked under the ashes, that is not turned. . . .

Hosea 10:2 Their heart is divided: now they shall perish: he shall break down their idols, he shall destroy their altars.

Matthew 6:22,24 The light of thy body is thy eye. If thy eye be single, thy whole body shall be lightsome. . . .

2 Peter 2:14 Having eyes full of adultery and of sin that ceaseth not: alluring unstable souls: having their heart exercised with covetousness: children of malediction.

2 Peter 3:16 As also in all his epistles, speaking in them of these things; in which are certain things hard to be understood, which the unlearned and unstable wrest, as they do also the other scriptures, to their own destruction.