John Wesley on Psalms 16:9

My glory - My tongue, which is a man's glory and privilege, above all other living creatures. Rejoiceth - Declares my inward joy. For this word signifies not so much eternal joy, as the outward demonstrations of it. My flesh - My body shall quietly rest in the grave. Shall rest - in confident assurance of its incorruption there, and of its resurrection to an immortal life: the flesh or body is in itself, but a dead lump of clay; yet hope is here ascribed to it figuratively, as it is to the brute creatures, Rom 8:19.