G-d: 430 ‘elohiym el-o-heem’ plural of 433; gods in the ordinary sense; but specifically used (in the plural thus, especially with the article) of the supreme God; occasionally applied by way of deference to magistrates; and sometimes as a superlative:–angels, X exceeding, God (gods)(-dess, -ly), X (very) great, judges, X mighty. https://www.blueletterbible.org/lexicon/h430/kjv/wlc/0-1/

Jesus: 3091 Yhowshuwa` yeh-ho-shoo’-ah or Yhowshua {yeh-ho-shoo’-ah}; from 3068 and 3467; Jehovah-[YH–] saved[–s]; Jehoshua (i.e. Joshua), the Jewish leader:–Jehoshua, Jehoshuah, Joshua. Compare 1954, 3442. https://www.blueletterbible.org/lexicon/h3091/kjv/wlc/0-1/

Amen (Amein): אָמֵן ʼâmên, aw-mane’; from H539; sure; abstract, faithfulnes; adverb, truly:—Amen, so be it, truth. https://www.blueletterbible.org/lexicon/h543/kjv/wlc/0-1/

The significance of the Name YHWH:

I AM WHO I AM or THAT I AM, ETC.

“According to the Hebrew Bible, in the encounter of the burning bush (Exodus 3:14) Moses asks what he is to say to the Israelites when they ask what ‘gods’ (‘Elohiym) have sent him to them, and YHWH replies, “I am who I am”, adding, “Say this to the people of Israel, ‘I am has sent me to you.’ ”

The Name that is ‘the spirit’ (ha-ruwach: the expression of, the mind of, etc..), the Word and Works of, the Bible’s ‘Elohiym!

“I AM THAT I AM”

Source (Interpretation section): https://en.wikipedia.org/wiki/I_Am_that_I_Am