- Jesus is a character in the New Testament.
- The name YHWH does not appear in any known manuscript version of the New Testament.
Perhaps more importantly, the OT and NT narratives originated in different cultures millennia apart.
Therefore Jesus is not relevant to the question of YHWH's human sacrifice. In other words, your post is off topic.
With respect, despite legitimate questions regarding authorship, time of writing, and the naming convention, it is presumed in the Bible itself to be the same god. If you stipulate that Jesus existed and spoke as the Bible states, he is on record as accepting the continuity, explicitly affirming the law and the prophets as still applying. The episode of the money changers reminds us that sacrifice was also still practiced among the Jews, of whom Jesus was one, and as I recall his issue there was not with the practice of sacrifice but with the profiteering.
Interpretive reading of the New Testament also, I think, suggests that Jesus (or the character represented as Jesus) was well versed in the Hebrew scriptures and general practices, his parables and other statements echoing (if often with a twist) the form and content of those that went before.
I do not think this makes a material difference in the question of what constitutes a sacrifice, or more importantly the suggestion that Jesus was sacrificed to whatever name the authors of the New Testament chose to use for their god.
But in this case I do not think Leumas is incorrect to conflate the two testaments as Christian doctrine generally does. We can still argue about what constitutes a sacrifice and who did what to whom, but if, as it appears, Leumas is basing his arguments on a literal reading of the canonical text, then that literal reading must, I think, consider both testaments as parts of the same Bible concerning the same presumed god.
Nope!!!