Numbers 7:89 in the King James Version
And when Moses was gone into the tabernacle of the congregation to speak with him, then he heard the voice of one speaking unto him from off the mercy seat that was upon the ark of testimony, from between the two cherubims: and he spake unto him.
Context
88 and all the cattle for the sacrifice of peace offerings: twenty-four bulls, sixty rams, sixty male goats, and sixty male lambs a year old. This was the dedication offering of the altar, after it was anointed.
89 When Moses went into the Tent of Meeting to speak with the LORD, he heard his voice speaking to him from above the mercy seat that was on the ark of the Testimony, from between the two cherubim; and he spoke to him.