The rare Hebrew noun alqum means literally 'no rising' or 'there is no standing up against' — conveying the idea of an irresistible force from which there is no recovery. It appears in Proverbs 30:31 in Agur's list of things that 'move with stately bearing.'
Agur's numerical saying (Proverbs 30:29-31) meditates on things that exhibit unstoppable, majestic movement — a lion, a strutting rooster, a he-goat, and a king with his army. These images point to natural and human authority that cannot be resisted in its domain. But the theological undercurrent is that God alone is ultimately alqum — no rising up against Him. What rulers and armies display in shadow, God displays in substance: a dominion before which every knee will bow (Philippians 2:10).