In Ezekiel 29:16, Egypt is removed as Israel's false confidence, clearing the way for the horn of Israel to bud as promised here.

Ezekiel 3:26 describes God causing muteness, the opposite of the opened mouth promised here.

Ezekiel 24:27 gives a parallel promise that Ezekiel's mouth will be opened, matching the restoration in 29:21.

In Ezekiel 28:25, God gathers scattered Israel back to their land — the restoration that the horn and open lips of 29:21 herald.

In Ezekiel 28:26, secure dwelling after judgment on neighbors is promised — the peaceful outcome of the horn's rising and lips being opened.

Ezekiel 33:22 records the actual fulfillment of the opened mouth, showing the promise realized.

In Ezekiel 3:27, God promised to open Ezekiel's mouth when speaking; here that promise is reiterated in the context of restoration.

In 1 Samuel 2:10, Hannah sings of God exalting the horn of his anointed — the same horn imagery for the Davidic king that 29:21 applies to Israel.

In Psalm 132:17, God makes a horn sprout for David — a direct parallel to the horn springing up for Israel in 29:21, both messianic promises.

In Psalm 148:14, God raises up a horn for his people Israel — the same national restoration imagery as the horn springing up in 29:21.

In Jeremiah 23:5, God raises up a righteous Branch for David — a parallel messianic promise to the horn springing up for Israel in 29:21.

Luke 1:69 directly echoes the 'horn' imagery, identifying Jesus as the horn of salvation promised for Israel.

Luke 21:15 promises Jesus gives his disciples a mouth and wisdom, echoing God's opening of Ezekiel's mouth.

In Luke 1:64, Zechariah's mouth is opened at John's birth, paralleling the promised opening of Ezekiel's mouth as a sign of God's intervention.

In Isaiah 27:6, Israel blossoms and fills the world with fruit — a different metaphor (plant growth) for the same restoration promised with the horn.