Exodus 3:5

Draw not nigh hither Keep thy distance. Thus God checks his curiosity and forwardness, and disposes his mind to the greater reverence and humility. Put off thy shoes from thy feet This is required as a token of his reverence for the Divine Majesty, then and there eminently present; of his humiliation for his sins, which rendered him unworthy to appear before God; of his putting away all sin in his walk or conversation; and of his submission and readiness to obey God's will; for which reason slaves were wont to approach their masters barefooted. We find the same direction given to Joshua, for the same reason, Joshua 5:15. And it seems not improbable that putting off the shoes, as a sign of humiliation and veneration, was a ceremony observed by the patriarchs in their religious worship. Buxtorf says, that to this day the Jews go to their synagogues barefoot on the day of atonement, (Jud. Synag., c. 30, p. 57,) and many learned men suppose that the priests officiated barefoot in the tabernacle and temple. The custom of treading barefoot in holy places seems to have been general in the East: the Egyptians used it: and Pythagoras, who recommends to his disciples to worship, putting off their shoes, (ανυποδητος προσκυνει,) is thought to have learned this rite from them. The Mohammedans observe this ceremony at the present time, as do also the Christians of Abyssinia. The truth seems to be, as Henry observes, that putting off the shoes was then what putting off the hat is now, a token of respect and submission. The ground is holy Not absolutely, but in relation to him who sanctified it by this peculiar manifestation of his presence. We ought to approach to God with a solemn pause and preparation; and to express our inward reverence by a grave and reverent behaviour in the worship of God, carefully avoiding every thing that looks light or rude.