Chapter 136

2021 - This song is very similar to Psalm 135.  The actions of God recounted in each are very similar.  135 seems to me to work better as a song sung by a priest, or priests, or a choir even as part of the Temple services.  This Psalm seems more like a responsive reading.  The phrase, phonetically rendered as "ki olam hesed" is the repeated phrase at the end of each verse. In "hesed", the h has that back of the throat hissing kind of sound. 

1st stanza, "...for his steadfast love endures forever."  This phrase was used repeatedly at the dedication of Solomon's Temple.  As I read it, the phrase originated with David, and it was David's wish that the songs used at the dedication should include this phrase.

2nd, Includes the phrase once in each of it's 6 verses.  I'm starting to guess David wrote this Psalm, and that this is the exact song that was used at the dedication.  These verses also are about creation.

3rd, This stanza retells God's actions as the people of Israel left Israel, escaped Pharoah at the Red Sea, and then came through the wilderness.

4th, This one is about the battles that God fought for Israel in conquering Canaan.

5th, He is the God who remembered Israel when they were low (Egypt), rescued them (brought them out), and fed them (manna, quail).

6th, Give thanks.

So this is an introduction, 3 stanzas of the history of Israel, one of thanks for God's presence with them at all times, and a last to give thanks to God.  What a great hymn for the dedication of the Temple, to remind them of who God was to them - the force behind their being a nation at all, because "His steadfast love endures forever!"