Proverbs 15:26 The thoughts of the wicked are an abomination to the LORD: but the words of the pure are pleasant words. 

‘Thoughts’ [Hebrew: machshebowth] is translated as devices or plans (12:5; 15:26; 16:3; 21:5; Gen. 6:5; Ps. 33:11; 40:5; 56:5; 94:11; Isa. 55:7-8). The thoughts of the wicked God hates, but He loves the plans and words of the pure.

‘Abomination to the LORD’ – Scripture lists many attitudes and actions that are detestable to the Lord. Among them are: The perverse or crooked person – one who turns aside from righteousness (3:32; 11:20). A proud look – arrogance in countenance and spirit (6:16-17). A lying tongue – speaking falsehood (6:17; 12:22). Hands that shed innocent blood – committing unjust violence (6:17). A heart that devises wicked plans – scheming evil in one’s thoughts (6:18). Feet that run swiftly to do evil – eagerness to sin. A false witness who lies – bearing false testimony (6:19). One who sows discord among others – stirring up strife and division. Wickedness in general – evil deeds and character (8:7). A false balance or scale – dishonesty in business and dealings (11:1). The sacrifices of the wicked – religious acts performed without righteousness (15:8; 21:27). The way of the wicked – their lifestyle and choices (15:9). The thoughts of the wicked – corrupt and ungodly thinking (15:26). A proud heart – inward arrogance (16:5). Justifying the wicked and condemning the just – moral corruption and injustice (17:15). Diverse weights and measures – dishonest standards in trade (20:10, 23). Refusing to hear God’s law – rejecting divine instruction (28:9). The prayers of the rebellious – religious acts from a disobedient heart.