"For the Word of God is living and active and sharper than any two-edged sword, piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart." Hebrews 4:12
Proverbs 23:7 says, -"For as a man thinks in his heart, within himself, so he is." Since we eventually act out our thoughts, we eventually become them. This is why the Bible warns us to capture every thought and bring it in captivity to Jesus. "Jesus, this thought entered my mind, can it stay or must it leave?"
The battle between God and Satan takes place in our minds. The focal point of the battle is our thought-life. Our thoughts tend to control our feelings, and our feelings have a critical influence on the choices we make.
Many make choices based upon how they feel, even though in their mind they may know that it is not a right choice. They decide to express their will according to their feelings.
How many times have you really known what was right but instead chose to do differently? It was because strong feelings were pulling you in that direction. Thoughts are the beginning point for all our attitudes, our choices and our behavior. We should be very careful and selective what thoughts we entertain.
The person who decides to steal from his neighbor did not just quickly come to that point. He first had to let that thought dwell in his mind until he seriously entertained the idea to do it. Over time he began to feel like doing it and then finally made the choice to do it. In reality he became a thief before he actually committed the crime.
We cannot control what thoughts come into our mind, but we can control what thoughts we allow to stay and entertain.
If we entertain thoughts that we think will bring us momentary pleasure we will naturally feel like doing what we know is wrong. But if we make a home for thoughts which bring glory and honor to God we will be strengthened to overcome any wayward thought the devil might send our way."Finally brethren, whatever is true, whatever is honorable, whatever is right, whatever is pure, whatever is lovely, whatever is of good repute, if there is any excellence and if anything worthy of praise, dwell on these things." (Phil.4:8) "Set your mind on the things above, not on the things that are on earth." (Col.3:2)