For the word of God is alive and active. Sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow; it judges the thoughts and attitudes of the heart. Hebrew 4:12
It is very important to examine our thoughts and intentions. Our thoughts and emotions can deceive us if we are not careful. Always identify what it is your thoughts are chasing after, as they are very instrumental in the decisions that you make. Therefore make sure you fill your thought-life/mind with true and noble things. Filter out anything that is not wholesome, that is misleading and manipulative by filling yourself up with God’s word.
“Finally, brothers and sisters, fill your minds with beauty and truth. Meditate on whatever is honourable, whatever is right, whatever is pure, whatever is lovely, whatever is good, whatever is virtuous and praiseworthy.” Philippians 4:8