The Lord speaks an axiom: “Brood of vipers! How can you, being evil, speak good things? For out of the abundance of the heart the mouth speaks” (Matthew 12:34, NKJV). From the heart comes the issues of life (cf. Proverbs 4:23). Exactly what those issues are will manifest itself in due time. Whatever your occupation, hobby, or interests might be—if any of these things take a priority in your life, why should you expect the Lord to take an interest in you?
You can be a scientist, a teacher, a banker, or even a preacher; if these things that are done encourage you to lose site of Him who is all-important, then blindness settles in. People speak about what is important to them. The Lord gave us what is important to Him. If we prioritize our thinking over His, then end result is catastrophic for those who do.
When a man does not protect that which belongs to him (his heart), then that which belongs to him will be affected by those evil influences on the outside. Secular education is important, but it has, unfortunately, turned into our own “secular righteousness.” Thus, the abundance that comes from the heart can be secular “righteousness” or godly righteousness.
On can’t help but to speak about that which resides inside. On Sunday morning it is easy to see what people want others to see, but when you post (or share things) on facebook what you would not say in “polite company”, then others learn who has your heart. RT