Summi Pontificatus §4

⁴ Even as the precursor of the Lord proclaimed one day to those who sought and questioned him: "Behold the lamb of God" ( Saint John i. 29), in order to warn them that the desired of the nations (cf. Aggeus ii. 8), dwelt, though as yet unrecognized, in their midst, so, too, the representative of Christ addressed his mighty cry of entreaty: "Behold your King" ( Saint John xix. 14) to the renegades, to the doubters, to the wavering, to the hesitant, who either refused to follow the glorious Redeemer, living ever and working in His Church, or followed Him with carelessness and sloth.