Chapter 66

Does not say David wrote this one.  It is not attributed at all.

1st, Glory and praise to God.

2nd, God has demonstrated His power.

3rd, God the deliverer of Israel.

4th, The Psalmist promises to offer sacrifices to God.

2023 - These interesting verses:

13 I will come into your house with burnt offerings; I will perform my vows to you, 14 that which my lips uttered and my mouth promised when I was in trouble. [Psa 66:13-14 ESV].  So making promises when things are going bad is not a new idea.  Does this mean making a vow - a promise - to God in the middle of bad times might be helpful in mitigating the problem...so long as you do what you said you'd do?  Surely that is implied here.

5th, The Psalmist says to come see what God has done for him.

I note that the tense of vs 18 is changed from NKJV.  In NKJV, it was present tense, in ESV it is some form of past tense.  In ESV it is about what would have been different if the Psalmist had been in a different relationship to God at the time he prayed.

2023 - These verses, as clarification of a verse I have often quoted:

17 I cried to him with my mouth, and high praise was on my tongue. 18 If I had cherished iniquity in my heart, the Lord would not have listened. [Psa 66:17-18 ESV].  We are still talking here about crying out to God in the midst of troubled times.  So "the Lord will not hear me" is not about "every day" prayers, at least that is not the context here.  When we're struggling, and we cry out for deliverance, we ought not to expect God to hear us if we are holding onto sin.  We need to get ourselves right with God before we ask for any special favors.  These fit well with 13-14 above.  I do sort of wish I knew who wrote this one though...