Numbers 7:89
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.
Cross-references
Numbers 12:8 highlights Moses' unique direct communication with God, 'mouth to mouth', paralleling the intimacy of the Tent encounter.
Numbers 8:1 continues the narrative as God now speaks to Moses after the previous verse described God speaking from the mercy seat.
Exodus 25:18-21 details the making of cherubim on the ark, the very objects above which God spoke.
Exodus 25:22 is the promise that God will speak from above the mercy seat — exactly what happens in Numbers 7:89.
Exodus 33:9-11 describes God speaking to Moses face to face at the tent entrance, providing an earlier parallel to the inside encounter here.
1 Chronicles 13:6 describes God enthroned above the cherubim, directly echoing the mercy seat scene where God spoke between the cherubim.
Hebrews 9:5 explicitly mentions the cherubim of glory overshadowing the mercy seat, a direct reference to the scene of Numbers 7:89.
Leviticus 1:1 also has God calling to Moses from the Tent of Meeting, another instance of divine communication there.
Psalm 80:1 portrays God as enthroned upon the cherubim, a poetic image echoing the mercy seat scene.