Abiding in Christ is just meant for the weak, and so beautifully suited to their feebleness. It is not the doing of some great things, and does not demand that we first lead a very holy and devoted life. No, it is simply weakness entrusting itself to a Might One to be kept, - the unfaithful one casting self on One who is altogether trustworthy and true. Abiding in Him is not a work that we have to do as the condition for enjoying His salvation, but a consenting to let Him do all for us, and in us, and through us. It is a work He does for us.
Andrew Murray, Abide in Christ: Thoughts on the Blessed Life of Fellowship with the Son of God (New York: Gosset and Dunlap, n.d.), 24-25