Sometimes when we say this I think we are emphasizing the wrong part. I think we think, “become like Jesus; become like God.” This trips us up - and “becoming like God” was the temptation that led to the first sin in Genesis 3.

“Becoming like Jesus” is embracing Jesus as fully human - and becoming like him is embracing and striving to become “fully human.” This is our goal, and thus the goal of our spirituality, in my view.

Some inspiration:

“What, dear brothers, is more delightful than this voice of the Lord calling to us? See how the Lord in his love shows us the way of life. Clothed then with faith and performance of good works, let us set out on this way with the Gospel for our guide that we may deserve to see him who has called us to his kingdom”
(St. Benedict - RB: Prologue: 19-21).

“Ministry is service in the name of the Lord. It is bringing the good news to the poor, proclaiming liberty to captives and new sight to the blind, setting the downtrodden free and announcing the Lord’s year of favor (Luke 4:18). Spirituality is paying attention to the life of the spirit in us; it is going out to the desert or up to the mountain to pray; it is standing before the Lord with open heart and open mind; it is crying out, ‘Abba, Father’; it is contemplating the unspeakable beauty of our loving God.”
(Henri J. M. Nouwen)

“The work of Jesus was not a new set of ideals or principles for reforming or even revolutionizing society, but the establishment of a new community, a people that embodied forgiveness, sharing and self-sacrificing love in its rituals and discipline. In that sense, the visible church is not to be the bearer of Christ’s message, but to be the message.”
(Stanley Hauerwas)

“I have come to believe that by and large the human family all has the same secrets, which are both very telling and very important to tell. They are telling in the sense that they tell what is perhaps the central paradox of our condition — that what we hunger for perhaps more than anything else is to be known in our full humanness, and yet that is often just what we also fear more than anything else.

It is important to tell at least from time to time the secret of who we truly and fully are even if we tell it only to ourselves — because otherwise we run the risk of losing track of who we truly and fully are and little by little come to accept instead the highly edited version which we put forth in hope that the world will find it more acceptable than the real things.”
(From Telling Secrets by Frederick Buechner. )

May we become fully human and thus become like Jesus.

“The Glory of God is man fully alive.”
(St. Irenaeus of Lyons)