Elijah is an oratorio written by Felix Mendelssohn in 1846 for the Birmingham Festival. It depicts various events in the life of the Biblical prophet, Elijah, taken from the books 1 Kings and 2 Kings in the Old Testament.

#18 Arioso: Woe, woe unto them who forsake Him

Woe, woe unto them who forsake Him!
Destruction shall fall upon them.
For they have transgressed against Him.
Though they are by Him redeemed,
Yet they have spoken falsely against Him;
From Him have they fled.
Woe unto them!

#31 Aria: O rest in the Lord

O rest in the Lord,
Wait patiently for Him,
And He shall give thee thy heart's desires.
Commit thy way unto Him, and trust in Him;
And fret not thyself because of evil doers.
O rest in the Lord,
Wait patiently for Him.