Meaning
Without the characterizing word "spiritual," this figurative term, with the same significance, is common to the Scriptures; applied
(1) to Yahweh, God: "Rock of his salvation," "their rock is not as our Rock" (Deu 32:15, Deu 32:31); "Yahweh is my rock" (Ps 18:2; compare Isa 26:4, Isa 32:2, 1Sa 2:2, 2Sa 22:2);
(2) to the foundation-stone of Christian confession and testimony (Mt 16:18; compare Eph 2:20, 1Co 3:11, 1Pe 2:6-8), and thus to Christ Himself;
(3) in Christian hymnology to Jesus crucified and spear-pierced: "Rock of ages, cleft for me."
Dwight M. Pratt