Christian Scientists contend that all God's children are "called to be saints," and they strive to comply with the further Scripture, "Be ye therefore perfect, even as your Father which is in heaven is perfect," but reasonably base all effort to this end upon the sublime logic of Paul in the words, "Brethren, I count not myself to have apprehended: but this one thing I do, forgetting those things which are behind, and reaching forth unto those things which are before, I press toward the mark for the prize of the high calling of God in Christ Jesus.