CM
I am from an excellent fellowship.
As far as your statement about the hymnals, I agree. IMO, there isn't a song that can touch It Is Well with My Soul. Sadly, most churches no longer use the old songs. They sing the WOW type praise songs (I have no problem with those) and I've heard bunches of SG (which I abhor, gives me the heeby jeevys, a fingernail scratching down the blackboard). Also, those old hymnals were written way long ago. People's ears weren't itching soooo bad as now.
5 years ago, I went to a different church every week (sometimes more if I went on a Sun eve or a Weds) and I found nothing that made me want to return. (At the time I had never heard the word Messianic.) This year of visits is what makes me think the way I do about how Christians view Hashem.
I began in the church and am aware that a large number (I won't say 'majority') of people think that as long as they keep 9 of the 10 commandments, then all is good. Abba is up in heaven just laughing away at His little children as they trudge through this dreary life on their way to heaven. To them, Hashem is not the same as the God of Judgement found in the OT (or else He's changed).
All I did, CM, is state that the God we know today through His revealed word is the same - it's all one complete whole Gospel, from Gen. to Rev. He's the God of Mercy and Grace as well as the God of Judgement.
I don't always word things in the best way. Sorry.