Psalm 3 is a great reminder of how YHVH is our protector, sustainer, and saviour. It highlights just how much YHVH does for us, how He protects us and how great and powerful He is.

It is written in the form of praise, rather than as a plea (which I suppose it could have been seeing as David wrote it when he was fleeing Avshalom), which emphasize just that much more YHVH’s greatness and the praise that He is due. Emphasis is placed on what YHVH does, not what He “can do”.

1 A psalm of David, when he fled from Avshalom his son:

2 YHVH, how many enemies I have!
How countless are those attacking me;
3 how countless those who say of me,
“There is no salvation for him in God.” (Selah)

Here we see the situation that David is in, which, I think, magnifies even more what follows. That is, how YHVH sutains us, protects us and delivers us.

4 But you, YHVH, are a shield for me;
you are my glory, you lift my head high.
5 With my voice I call out to YHVH,
and he answers me from his holy hill. (Selah)

YHVH is our Shield. He protects us from our enemies, amongst other things. He is our glory and is the One who lifts our head high. When we call out to Him, he answers our prayers.

6 I lie down and sleep, then wake up again,
because YHVH sustains me.
7 I am not afraid of the tens of thousands
set against me on every side.

YHVH is our sustainer. He is the reason we are alive and wake up each morning. It is because of Him that we need not be afraid of those who are against us.

8 Rise up, YHVH!
Save me, my God!
For you slap all my enemies in the face,
you smash the teeth of the wicked.
9 Victory comes from YHVH;
may your blessing rest on your people. (Selah)

YHVH will save us. He will take care of our enemies. Our victory comes from Him. We don’t have to pursue it on our own. How great is YHVH that He will fight our battles for us?