To be like God, we need to work on purifying ourselves, purging out sin and uncleanness, reflecting our relationship with God in every aspect our behavior.
As bearers of God's name, we must aspire to holiness. Perfecting holiness is the process by which we are transformed from the glory of man to the glory of God.
Holy things are set apart from the rest, consecrated, sanctified, and transcendentally separate. God wants to transform us into that very image.
We have a natural desire for eternal life, but living endlessly would not be a blessing if our circumstances were miserable. Eternal life means quality of life.
A portion of Leviticus, dubbed 'the holiness code,' describes how God lives. In the Sermon on the Mount, Jesus expanded the application of the holiness code.