The second part of the sermon centers on the transformative power of the heart in the life of a believer, emphasizing that true spiritual renewal begins with God's work in the heart through the Holy Spirit and Scripture. Drawing from Proverbs 4:23 and numerous New Testament passages, it highlights how salvation enables a believer to live from a renewed heart—casting down evil imaginations, submitting to authority, doing God's will with sincerity, singing with grace, fearing God, serving with a pure conscience, and drawing near to Him with a true heart. The message underscores that the heart, once corrupt, is now sanctified by God's word and established by grace, with the critical need for singleness of purpose—keeping Christ first—to avoid the deception of the 'evil eye' that leads to spiritual darkness. Ultimately, the sermon calls listeners to prioritize a heart aligned with God, where obedience, purity, and meekness reflect a life transformed by grace and truth.