Jeremiah 15:20-21

If Jeremiah repented, the Lord would make him as indestructible as a bronze wall (cf. Jeremiah 15:12; Jeremiah 1:18-19). No one would be able to destroy him because the Lord would be with him and deliver him from his adversaries. He would rescue him from the wicked who would try to kill him, and He would free him from the grasp of those who would treat him violently.

"The antidote for the prophet’s earlier ’Woe is me’ [Jeremiah 15:10] was the Lord’s ’I am with thee’ (Jeremiah 15:20). No better word could ever be given by God to one of His servants, anywhere or anytime!" [Note: Jensen, p. 54. Cf. Matthew 28:20.]

This passage appears to reflect Jeremiah’s lowest point emotionally in his ministry.