#exclusive psalmody

Is it legitimate to interpret psalm 4:3 "But know that the LORD hath set apart him that is godly for himself" (AV) about unconditional election? Or does it merely talk about his favour being shown to the godly man? Full psalm, 1650 Psalter:

How are we to approach directives for worship in the psalter? Such as: - dancing - singing a new song - using harps - using tambourines - having a procession of virgins with drums - clapping hands - sacrificing sacrifices (okay, this one is easy) - bowing down before the Lord Ext...

Where in the scriptures do you see a commandment for us, under the new covenant, to write and sing hymns of our own writing, even in the public assembly of the visible church, either explicitly or by good and necessary consequence? Edit: this is a related post...

Edit: this is a related post https://www.puritanboard.com/threads/question-for-exclusive-psalmody-opponents.110609/ How would you, as EP proponents, understand different non-psalm songs in the bible? Under the old covenant, it seems you could write songs, just like you can pray uninspired...

Good Morning, Preface: I do currently hold to the Exclusive Psalmody / Acapella Only in Worship positions and believe them to be at least supported by the Westminster Standards. However, I have often wondered if the original Westminster Standards should be viewed as an Exclusive Psalmody (EP)...

PB, I have been striving over the past months to wrap my head around the EP/AO position as being required by the RPW. I am humbly chewing on this and am just looking for some answers to the questions that have arisen as I have set my mind to this topic. The majority of my strategy has been to...