Now, what is the meaning of this term "perfect heart," referring to the hearts of God's children, all the way through the Bible? As you know, I like to establish my points in the mouths of two or three witnesses, I will give you two or three texts, that we may find out God's meaning of this term, and then we will give you the very lowest rendering, where all schools are agreed, for I don't want controversy. We will just look at Psalm xxxvii. 37: "Mark the perfect man, and behold the upright: for the end of that man is peace." There _are_ such people as God means in that verse. Psalm lxiv. 4: "That they may shoot in secret at the perfect," who have always been a favorite target of the devil. He does not shoot much at people whose hearts are perfect towards the Lord. It is at those perfect people he shoots. "Suddenly do they shoot at him," perhaps while he is thinking they are his friends. "Suddenly they shoot, and fear not." "Be ye perfect," says the Saviour, "even as your Father which is in Heaven is perfect." That means something. We will try to find out what it does mean (Matt. xix. 21)-- "Jesus said unto him, If thou wilt be perfect, go and sell that thou hast, and give to the poor, and thou shalt have treasure in Heaven: and come _and_ follow Me." And, again, at 1 Cor. ii. 6-- "Howbeit, we speak wisdom among them that are perfect." And (2 Timothy iii. 17)-- "That the man of God may he perfect, thoroughly furnished unto all good works." There are numbers of others, but these are samples, and I suppose all Christians attach _some_ meaning to these terms. They must be terms signifying a great difference between the persons who are spoken of and ordinary men and women. Now, what do they mean? Well, the very lowest rendering of all divines and all schools is this, that it means _sincerity_ and _thoroughness_. Well, that is all I want. Give me a man sincere and thorough in his love, and that is all I want; that will stretch through all the ramifications of his existence; it will go to the ends of his fingers and his toes, through his eyes, and through his tongue, to his wife, and to his family, to his shop, and to his business, and to his circle in the world. That is what I mean by _holiness_! Then, taking the lowest translation, it means that a man is whole-hearted in love, and thorough out-and-out in service! Amen. For that man who is thus perfect towards God, God will indeed show Himself strong in more ways than one!