“Let the word of Christ dwell in you richly in all wisdom, teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord.” Colossians 3:16.
“For whom He [God] foreknew, He also predestined to be conformed to the image of His Son [Jesus Christ], that He might be the firstborn among many brethren.” Romans 8:29.
“Be anxious for nothing, but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God: and the peace of God, which surpasses all understanding, will guard your hearts and minds through Christ Jesus. Finally, brethren, whatever things are true, whatever things are noble, whatever things are just, whatever things are pure, whatever things are lovely, whatever things are of good report, if there is any virtue and if there is anything praiseworthy – meditate on these things.” Philippians 4:6-8.
“The heart is deceitful above all things, and desperately wicked; who can know it? I, the Lord, search the heart, I test the mind, even to give every man according to his ways, and according to the fruit of his doings.” Jeremiah 17:9-10.