God uses this question to expose the shocking contrast between His faithful planting and Israel’s corrupt transformation. By framing the indictment as a question rather than a statement, He invites Israel to confront the inexplicable nature of their apostasy and feel the weight of their betrayal against such devoted care.

Israel did not provide a verbal answer to God’s question. Instead, their response was demonstrated through continued idolatry and covenant unfaithfulness, which Jeremiah details in the following verses. They denied their guilt and protested their innocence even while engaging in Baal worship and spiritual adultery with foreign nations (Jeremiah 2:23-25, 35).

God’s question expresses profound disappointment over Israel’s spiritual transformation. The Hebrew word for degenerate is sur, meaning to turn aside or become estranged, emphasizing a deliberate departure from original character. God had planted them as a noble vine wholly of pure seed, the Hebrew phrase zerah emet literally meaning seed of truth or reliability. The question format heightens the tragedy because the transformation is both inexplicable and inexcusable. A vine does not naturally degenerate from noble to wild; such corruption requires active neglect and contrary cultivation. By asking how rather than simply declaring their failure, God emphasizes the unnatural and shocking nature of their apostasy. This rhetorical strategy intensifies Israel’s guilt while simultaneously revealing God’s wounded love. The question carries the weight of a father asking a once-faithful child how they could abandon everything they were raised to be.