Jeremiah 45:1
45:1 The word that Jeremiah the prophet spoke to {a} Baruch the
     son of Neriah, when he had written these {b} words in a
     book from the mouth of Jeremiah, in the fourth year of
     Jehoiakim the son of Josiah king of Judah, saying,

     (a) Who was Jeremiah's disciple, and wrote his prophecies
         under him.
     (b) Of which read Jeremiah 36:9,10.

Jeremiah 45:3
45:3 Thou didst say, Woe is me now! for the LORD hath added
     grief to my sorrow; I {c} fainted in my sighing, and I find
     no rest.

     (c) Baruch moved with an inconsiderate zeal for Jeremiah's
         imprisonment, but chiefly for the destruction of the
         people and the temple makes this lamentation, as in
         Psalm 6:6.

Jeremiah 45:4
45:4 Thus shalt thou say to him, The LORD saith thus; Behold,
     [that] which I have built I will {d} break down, and that
     which I have planted I will pluck up, even this whole land.

     (d) Meaning that God could destroy this people, because he
         had planted them.

Jeremiah 45:5
45:5 And seekest {e} thou great things for thyself? seek [them]
     not: for, behold, I will bring evil upon all flesh, saith
     the LORD: but thy life will I give to thee for {f} a prize
     in all places where thou goest.

     (e) "Do you think to have honour and credit?" in which he
         shows his infirmity.
     (f) Read Jeremiah 21:9.