How did God reveal Himself to Israel in the Old Testament period?
From Abraham until Malachi, God revealed Himself to the nation of Israel through the prophets and through various other means. This was the Old Testament period of divine revelation, ending with Malachi. Then 400 years of silence elapsed before God's next move with Israel.
Les explains that from Abraham until Malachi, God had been revealing Himself through the prophets and through various other means to the nation of Israel. After Malachi completed the Old Testament, 400 years elapsed—a period called the 400 years of silence—until the angel announced the birth of John the Baptist to Joseph and Mary. Only then did God make His next move with Israel. In Malachi 3:1, the Lord is identified as Jehovah, God the Son.