God knows our thoughts.
“You know when I sit and when I rise; you perceive my thoughts from afar. You discern my going out and my lying down; you are familiar with all my ways. Before a word is on my tongue you, Lord, know it completely.” (Ps. 139: 2-4).
“Some men brought to him a paralyzed man, lying on a mat. When Jesus saw their faith, he said to the man, ‘Take heart, son; your sins are forgiven.’ At this, some of the teachers of the law said to themselves, ‘This fellow is blaspheming!’ Knowing their thoughts, Jesus said, ‘Why do you entertain evil thoughts in your hearts? Which is easier: to say, ‘Your sins are forgiven,’ or to say, ‘Get up and walk’? But I want you to know that the Son of Man has authority on earth to forgive sins.’ So he said to the paralyzed man, ‘Get up, take your mat and go home.’ ” (Matt. 9: 2-6).
Where do evil thoughts come from?
“Don’t you see that whatever enters the mouth goes into the stomach and then out of the body? But the things that come out of a person’s mouth come from the heart, and these defile them. For out of the heart come evil thoughts—murder, adultery, sexual immorality, theft, false testimony, slander. These are what defile a person; but eating with unwashed hands does not defile them.” (Matt. 15: 17-20).
“When tempted, no one should say, ‘God is tempting me.’ For God cannot be tempted by evil, nor does he tempt anyone; but each person is tempted when they are dragged away by their own evil desire and enticed. Then, after desire has conceived, it gives birth to sin; and sin, when it is full-grown, gives birth to death.” (James 1: 13-15).
Evil thoughts are in our hearts. God’s judgement will consider our thoughts and the secrets of our hearts.
“(Indeed, when Gentiles, who do not have the law, do by nature things required by the law, they are a law for themselves, even though they do not have the law. They show that the requirements of the law are written on their hearts, their consciences also bearing witness, and their thoughts sometimes accusing them and at other times even defending them.) This will take place on the day when God judges people’s secrets through Jesus Christ, as my gospel declares.” (Rom. 2: 14-16).
We are not in total control of our thoughts but can allow the Holy Spirit to transform our thinking and we have the power of God’s saving grace and mercy.
“All of us also lived among them at one time, gratifying the cravings of our flesh and following its desires and thoughts. Like the rest, we were by nature deserving of wrath. But because of his great love for us, God, who is rich in mercy, made us alive with Christ even when we were dead in transgressions—it is by grace you have been saved.” (Eph. 2: 3-5).
“Therefore, holy brothers and sisters, who share in the heavenly calling, fix your thoughts on Jesus, whom we acknowledge as our apostle and high priest.” (Heb. 3:1).
“Do not be anxious about anything, but in every situation, by prayer and petition, with thanksgiving, present your requests to God. And the peace of God, which transcends all understanding, will guard your hearts and your minds in Christ Jesus. Finally, brothers and sisters, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable—if anything is excellent or praiseworthy—think about such things.” (Philip. 4: 6-8).
When the enemy accuses you and tempts you through your fallen nature, resist him, cry out to God for help and stand on the promises of God. The light will come and drive out the darkness. These scriptures show us that spiritual battle is not uncommon, but as we persevere He will bring us through. “The weapons we fight with are not the weapons of the world. On the contrary, they have divine power to demolish strongholds. We demolish arguments and every pretension that sets itself up against the knowledge of God, and we take captive every thought to make it obedient to Christ.” (2 Cor. 10: 4-5).