All true believers are holy priests. They are made this by spiritual birth, just as Aaron's sons were priests in virtue of their natural birth. The apostle does not say, Ye _ought to be_ living stones, and, Ye ought to be holy priests. He says ye _are_ such. No doubt, being such, we are called upon to act accordingly; but we must be in a position before we can discharge the duties belonging to it. We must be in a relationship before we can know the affections which flow out of it. We do not become priests by offering priestly sacrifices. But being, through grace, made priests, we are called upon to present the sacrifice. If we were to live a thousand years twice told, and spend all that time working, we could not work ourselves into the position of holy priests; but the moment we believe in Jesus--the moment we come to Him in simple faith--the moment we give Him the full confidence of our hearts, we are born anew into the position of holy priests, and are then privileged to draw nigh and offer the priestly sacrifice. How could any one, of old, have constituted himself a son of Aaron? Impossible. But being born of Aaron, he was thereby made a member of the priestly house. We speak not now of capacity, but simply of the position. This latter was reached not by effort, but by birth. And now, let us enquire as to the nature of the sacrifice which, as holy priests, we are privileged to offer. We are "to offer up spiritual sacrifices, acceptable to God by Jesus Christ." So also in Heb. xiii. 15, we read, "By Him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to His name." Here, then, we have the true nature and character of that sacrifice which, as holy priests, we are to offer. It is praise--"praise to God continually." Blessed occupation! Hallowed exercise! Heavenly employment! And this is not to be an occasional thing. It is not merely at some peculiarly favored moment, when all looks bright and smiling around us. It is not to be merely amid the glow and fervor of some specially powerful public meeting, when the current of worship flows deep, wide, and rapid. No; the word is, "praise _continually_." There is no room, no time for complaining or murmuring, fretfulness and discontent, impatience and irritability, lamenting about our surroundings, whatever these may be, complaining about the weather, finding fault with those who are associated with us, whether in public or in private, whether in the congregation, in the business, or in the family circle.