Elohim is a plural title not for a specific God, i.e. the God of Abraham, Isaac, and Jacob, but gods in general (false gods). The Brown-Driver-Briggs Hebrew and English Lexicon explains that Elohim means:
1a) rulers, judges
1b) divine ones
1c) angels
1d) gods
In its usage in Genesis 1:1 it clearly refers to not just any gods (small G = false gods) but to Yahweh, and being plural, refers to the Trinity.
I hope this is helpful @hope777