Psalms 78:36-42 NKJV
[36] Nevertheless they flattered Him with their mouth, And they lied to Him with their tongue; [37] For their heart was not steadfast with Him, Nor were they faithful in His covenant. [38] But He, being full of compassion, forgave their iniquity, And did not destroy them. Yes, many a time He turned His anger away, And did not stir up all His wrath; [39] For He remembered that they were but flesh, A breath that passes away and does not come again. [40] How often they provoked Him in the wilderness, And grieved Him in the desert! [41] Yes, again and again they tempted God, And limited the Holy One of Israel. [42] They did not remember His power: The day when He redeemed them from the enemy,

Matthew 15:3-6, 8-11 NKJV
[3] He answered and said to them, “Why do you also transgress the commandment of God because of your tradition? [4] For God commanded, saying, ‘Honor your father and your mother’; and, ‘He who curses father or mother, let him be put to death.’ [5] But you say, ‘Whoever says to his father or mother, “Whatever profit you might have received from me is a gift to God”— [6] then he need not honor his father or mother.’ Thus you have made the commandment of God of no effect by your tradition.
[8] ‘These people draw near to Me with their mouth, And honor Me with their lips, But their heart is far from Me. [9] And in vain they worship Me, Teaching as doctrines the commandments of men.’ ” [10] When He had called the multitude to Himself, He said to them, “Hear and understand: [11] Not what goes into the mouth defiles a man; but what comes out of the mouth, this defiles a man.”

Matthew 15:14-20 NKJV
[14] Let them alone. They are blind leaders of the blind. And if the blind leads the blind, both will fall into a ditch.” [15] Then Peter answered and said to Him, “Explain this parable to us.” [16] So Jesus said, “Are you also still without understanding? [17] Do you not yet understand that whatever enters the mouth goes into the stomach and is eliminated? [18] But those things which proceed out of the mouth come from the heart, and they defile a man. [19] For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies. [20] These are the things which defile a man, but to eat with unwashed hands does not defile a man.”

Titus 1:15-16 NKJV
[15] To the pure all things are pure, but to those who are defiled and unbelieving nothing is pure; but even their mind and conscience are defiled. [16] They profess to know God, but in works they deny Him, being abominable, disobedient, and disqualified for every good work.

Jude 1:24-25 NKJV
[24] Now to Him who is able to keep you from stumbling, And to present you faultless Before the presence of His glory with exceeding joy, [25] To God our Savior, Who alone is wise, Be glory and majesty, Dominion and power, Both now and forever. Amen.