Salmos 119:131

I opened my mouth, and panted - A metaphor taken from an animal exhausted in the chase. He runs, open-mouthed, to take in the cooling air; the heart beating high, and the muscular force nearly expended through fatigue. The psalmist sought for salvation, as he would run from a ferocious beast for his life. Nothing can show his earnestness in a stronger point of view.