Parallel
Psalms 72:26
Swete's Septuagint · Berean Standard Bible
ἐξέλιπεν ἡ καρδία μου καὶ ἡ σάρξ μου, ὁ θεὸς τῆς καρδίας μου, καὶ ἡ μερίς μου ὁ θεὸς εἰς τὸν αἰῶνα.
73:26
My flesh and my heart may fail, but God is the strength (note: Hebrew rock) of my heart and my portion forever.