Why is being conformed to the image of Christ important for believers?

In Romans 8:29, it is stated that 'those whom he foreknew he also predestined to be conformed to the image of his Son.' This process is crucial as it represents the sanctification of believers, transforming them into Christ's likeness. This transformation reflects God's purpose and love towards his elect, emphasizing that true understanding of one’s identity and purpose as a believer is found in Christ. Moreover, 1 John 3:2 assures believers of their ultimate glorification, stating that when Christ appears, we shall be like him. This progression toward Christ-likeness is essential for a believer's growth and assurance of salvation in the sovereign plan of God.