The Hebrew proper name Achyow (Ahio) is derived from ach (brother) with a possessive suffix, meaning 'his brother' or 'brotherly.' The most notable Ahio is the son of Abinadab who walked before the ark of the covenant as it was transported toward Jerusalem in David's time.
The transport of the ark in 2 Samuel 6 stands as one of Scripture's most instructive narratives about approaching a holy God. Ahio walked before the ark while his brother Uzzah walked beside it. When Uzzah reached out to steady the ark and was struck dead, God demonstrated that His holiness demands His prescribed order of approach. The proper way to transport the ark was on the shoulders of the Levites (Numbers 7:9), not on a cart. This event teaches that sincere intentions cannot substitute for obedient reverence. God's way is the only safe way.