The usual practice in viticulture, the care of vines, is for the branches to be pruned back each year in order to cleanse them. A vine produces certain shoots called “sucker shoots,” which start to grow where a branch joins the stem. If allowed to continue to grow, they would dissipate the life of the vine through so many branches that the vine would produce little or no fruit and would produce mainly leaves instead. Every vinedresser knows it is important to prune away these little sucker shoots to ensure plentiful fruit. Since the shoots grow right where the branch joins the stem, creating a tight cluster where dirt, leaves, and other debris collect, the pruning is basically a cleansing process.
The Father’s work in our lives is to find a branch that is beginning to bear fruit, beginning to produce the likeness of Christ, and then to cut it back. He trims off the troublesome shoots, so that we may bear more fruit.