Our ability to grow does not come from our own efforts, it comes from a relationship with God and the presence of the Holy Spirit in our lives.  2 Peter 1:3 says, His divine power has given us everything we need for life and godliness through our knowledge of him who called us by his own glory and goodness. Christ called us to to a relationship with Him first, not the other way around. It is through His power we receive everything we need.