Prophesy and declare
Ezekiel is commanded to deliver a message from God, indicating the authoritative nature of the prophecy. This reflects the role of prophets as God's mouthpieces, tasked with conveying His will and warnings to the people. The act of prophesying involves both foretelling future events and forth-telling God's truth.

That this is what the Lord GOD says
The phrase establishes the divine origin of the message, affirming its authority and reliability. The use of "Lord GOD" (YHWH Elohim) emphasizes God's sovereignty and covenant relationship with Israel. This introduction is common in prophetic literature, underscoring that the message is not from the prophet's own imagination but from God Himself.

Wail
The call to wail signifies impending doom and judgment, a common theme in prophetic literature. Wailing is a cultural expression of deep sorrow and lamentation, often associated with mourning for the dead. It reflects the seriousness of the coming judgment and the appropriate human response to divine warnings.

‘Alas for that day!’
This exclamation points to a specific time of calamity and judgment, often referred to as "the day of the LORD" in prophetic texts. It is a day characterized by God's intervention in history, bringing both judgment and salvation. This phrase connects to other prophetic writings, such as Joel 2:1 and Zephaniah 1:14, which also speak of a day of reckoning. The lamentation anticipates the severity of the events to come, urging the audience to recognize the gravity of the situation.

“Son of man” (Ezekiel 30:2) reminds Ezekiel—and us—of the prophet’s shared humanity with those he addresses.

• The title keeps the focus on God’s message, not the messenger, echoing earlier uses in Ezekiel 2:1 and Daniel 8:17.

• It underscores that Ezekiel stands as a representative for all people, fully dependent on God’s revelation (Psalm 8:4).

• By calling the prophet “son of man,” the Lord stresses that even frail humans can speak God’s infallible word when commissioned by Him (2 Peter 1:21).

The command to “prophesy” shows that this announcement is not Ezekiel’s opinion but a direct revelation.

• Prophecy serves to confront sin, warn of judgment, and call to repentance, as in Amos 3:7 and Jeremiah 1:9–10.

• Ezekiel must speak boldly (Ezekiel 2:7), trusting the certainty of God’s word (Isaiah 55:11).

• The instruction affirms that God still speaks clearly and specifically to address real historical events—here, impending judgment against Egypt (Ezekiel 30:4–19).

The phrase centers everything on divine authority.

• “The Lord GOD” (Adonai Yahweh in many translations) highlights both sovereign rule and covenant faithfulness (Exodus 6:2–8).

• Repeating “this is what the Lord GOD says” frames every prophecy in absolute truthfulness, similar to Jesus’ “Truly, truly, I say to you” (John 3:3).

• It distinguishes God’s sure word from human speculation (Numbers 23:19), guaranteeing the prophecy’s literal fulfillment.

A single verb captures the proper response to coming judgment.

• Wailing signifies deep grief over sin’s consequences, paralleling Jeremiah 9:17–19 and Micah 1:8.

• It alerts hearers that what follows is not trivial but catastrophic (Revelation 18:9–10).

• The command invites genuine sorrow that could lead to repentance (Joel 2:12–13), even as the judgment itself remains certain.

The lament pinpoints a specific, climactic “day.”

• “That day” often refers to the Day of the LORD, a time when God directly intervenes in history (Isaiah 13:6; Zephaniah 1:14).

• In immediate context, it marks Babylon’s invasion of Egypt (Ezekiel 30:10–12), fulfilling earlier warnings (Ezekiel 29:19).

• Yet it also foreshadows the ultimate Day when Christ returns to judge the nations (Matthew 24:30–31), urging every generation to sober readiness (1 Thessalonians 5:2).

Ezekiel 30:2 calls a human prophet to deliver God’s unerring word of judgment. The command to prophesy underscores divine authority, the summons to wail reveals the gravity of sin’s consequences, and the cry “Alas for that day!” points to a real, historic calamity that also anticipates the final Day of the LORD. The verse urges heartfelt mourning over sin and confident trust that God’s spoken judgments and promises will come to pass exactly as declared.