The New John Gill Exposition of the Entire BibleJeremiah 45:2
Thus saith the Lord, the God of Israel, unto thee, O Baruch.
Whom he knew by name, had a great regard for, and honours with this
prophecy; and, being an Israelite, both in a literal and spiritual
sense, he addresses him as the God of Israel, and as being his covenant
God; in whom he should put his trust, and from whom he might expect
safety and protection in the worst of times; and to whose sovereign
will, in all the dispensations of his providence, he ought to have
humbly and patiently submitted.