How does God call us according to His purpose?

In Romans 8:30, we see that 'whom He did predestinate, them He also called.' This calling is not just an invitation; it is an effective call that changes our wills and inclinations toward God. John 6:44 affirms that 'No man can come to Me, except the Father which hath sent Me draw him,' indicating that this divine calling is a sovereign and irresistible work of God. The nature of this calling involves giving us a new heart and spirit, enabling us to respond in faith and repentance, which is a central aspect of God's purpose in redemption.