Jeremiah 33:2-3 reads:

*“This is what the Lord says, he who made the earth, the Lord who formed it and established it—the Lord is his name: Call to me and I will answer you and tell you great and unsearchable things you do not know.”* (NIV)

From an evangelical Christian perspective, the most likely author of this passage is the prophet Jeremiah himself. The Book of Jeremiah is traditionally attributed to him and is considered one of the major prophetic books of the Old Testament.

### Author Background:
1. **Identity**: Jeremiah was a prophet during a tumultuous period in Judah’s history, particularly during the late 7th and early 6th centuries B.C., a time leading up to the Babylonian exile.
2. **Calling**: He was called by God at a young age (Jeremiah 1:4-10) and was tasked with delivering messages of warning, judgment, and hope to the people of Judah.
3. **Ministry**: His ministry spanned several decades, during which he faced significant opposition, persecution, and personal anguish due to his messages and the people’s unfaithfulness.

### Context of the Passage:
– **Historical Context**: Jeremiah 33 occurs during a time of crisis in Judah when the Babylonian siege was imminent. The people were fearful, and Jeremiah was imprisoned.
– **Theme of Restoration**: This chapter emphasizes God’s promises of restoration and hope, contrasting the judgment that the people were experiencing. The verses encapsulate God’s assurance that He is still in control and is ready to reveal profound truths to those who seek Him.

### Interpretation and Application:
1. **Divine Assurance**: The verses highlight God’s sovereignty as the Creator who has authority over the earth and expresses His willingness to communicate with those who call upon Him.
2. **Invitation to Prayer**: The invitation to “call to me” and the promise of revelation are often emphasized in evangelical teaching, encouraging believers to seek God through prayer for guidance and understanding.
3. **Faithfulness of God**: The passage reassures believers of God’s faithfulness and His desire to be known and to have a relationship with His people.

In summary, from an evangelical perspective, the author of Jeremiah 33:2-3 is the prophet Jeremiah, known for his deep commitment to God’s messages and his role during a critical time in Israel’s history. The verses serve as a reminder of God’s promise to reveal truth to those who earnestly seek Him.