Exodus 9:29

I will spread abroad my hands - That is, I will make supplication to God that he may remove this plague. This may not be an improper place to make some observations on the ancient manner of approaching the Divine Being in prayer. Kneeling down, stretching out the hands, and lifting them up to heaven, were in frequent use among the Hebrews in their religious worship. Solomon kneeled down on his knees, and spread forth his hands to heaven; 2 Chronicles 6:13 . So David, Psalm 143:6 ; : I stretch forth my hands unto thee. So Ezra: I fell upon my knees, and spread out my hands unto the Lord my God; Ezra 9:5 . See also Job Job 11:13 ; : If thou prepare thine heart, and stretch out thy hands towards him. Most nations who pretended to any kind of worship made use of the same means in approaching the objects of their adoration, viz., kneeling down and stretching out their hands; which custom it is very likely they borrowed from the people of God. Kneeling was ever considered to be the proper posture of supplication, as it expresses humility, contrition, and subjection. If the person to whom the supplication was addressed was within reach, the supplicant caught him by the knees; for as among the ancients the forehead was consecrated to genius, the ear to memory, and the right hand to faith, so the knees were consecrated to mercy. Hence those who entreated favor fell at and caught hold of the knees of the person whose kindness they supplicated. This mode of supplication is particularly referred to in the following passages in Homer: -

Των νυν μιν μνησασα παρεζεο, και λαβε γουνων .

Iliad i., ver. 407.