Exodus 6:13 records the LORD's command to Moses and Aaron to bring Israel out, which they then carry out as described in 6:27.

Exodus 6:26 identifies them as the recipients of God's command, complementing the statement in 6:27 that they spoke to Pharaoh.

Exodus 5:1-3 records the actual speaking to Pharaoh that 6:27 summarizes, providing the narrative context for the mission.

Exodus 7:10 shows Moses and Aaron actually going to Pharaoh and performing the sign, fulfilling the identification in 6:27 of them as the ones who spoke.

Psalm 77:20 celebrates God leading Israel through Moses and Aaron, directly recalling the pair in Exodus 6:27.

Micah 6:4 explicitly says God sent Moses and Aaron to lead Israel out, affirming their role in Exodus 6:27.

Psalm 105:26 states God sent Moses and Aaron, matching the description in Exodus 6:27 of them speaking to Pharaoh.