Psalm 118:14 The LORD is my strength and my defense; he has become my salvation (NIV).
I’m not sure why the NIV translates “song” as “defense.” The Hebrew for song is זִמְרָת zimrâth (zim-rawth’); instrumental music; by implication praise: – song.
Possibly it is because of verse 15: The sound of joy and salvation is in the tents of the upright; the right hand of the Lord does works of power (BBE). Of which, Adam Clarke comments, “Formerly there was nothing but wailings; but now there is universal joy because of the salvation-the deliverance, which God has wrought for us.”
Maybe it is that the song comes after victory. But hasn’t God always achieved victory as a result of “the song?” Jericho is a good example. The “seven priests bearing the seven trumpets” (Joshua 6:8) was sent in advance of all else. God didn’t send the warriors first. Victory was already promised. The LORD had told them that Jericho was theirs for the taking. He had told them before crossing Jordan that He was going before them to fight their battles.
It is good for us to remember that God is always going before us, into whatever venture He leads. He is our salvation (deliverance) along the way no matter what we encounter.
And He will give a song, even in the night! (Isaiah 30:29).