1.Christ is knocking at my sad heart; Shall I let Him in? Patiently pleading with my sad heart; O shall I let Him in? Cold and proud is my heart with sin, Dark and cheerless is all within; Christ is bidding me turn unto Him; O shall I let Him in? 2.Shall I send Him the loving word? Shall I let Him in? Meekly accepting my gracious Lord, O shall I let Him in? He can infinite love impart, He can pardon this rebel heart; Shall I bid Him forever depart, Or shall I let Him in? 3.Yes, I'll open this proud heart's door, Yes, I'll let Him in. Gladly I'll welcome Him evermore; O, yes,' I'll let Him in. Blessed Saviour, abide with me, Cares and trials will lighter be; I am safe if I'm only with Thee, O, blessed Lord, come in!