How to translate the Hebrew “untranslated word ‘et’” into English:

• EITHER: “In the beginning created God (Elohim), the Alpha and Omega, the heavens and the earth.”
• OR: “In the beginning created God (Elohim), and the heavens and the earth.”

The EITHER/OR depends on:

• EITHER: “et” can be read by the literal meaning of each Hebrew letter: where the “e” is the “Alef/Alpha” and the “t” is the “Tav/Omega”. The Alef and Tav are Hebrew, while their counterparts in Greek are Alpha and Omega.

OR: “et” can be read as its Hebrew word “and”, a word holding two thoughts or sentences together. Scripture tells us that Jesus holds everything together.

• Romans 11:³⁶
  Amplified Bible
  For from Him [all things originate] and through Him [all things live and exist] and to Him are all things [directed]. To Him be glory and honor forever! Amen.
  
• Hebrews 1:10
  NKJV
  Upholding all things by the word of His power.
  
• Ephesians 1:10
  NKJV
  That in the dispensation of the fullness of the times He might gather together in one all things in Christ, both which are in heaven and which are on earth—in Him.

After all, Jesus IS the Alpha AND Omega who holds all things together and, in the end, will gather all things to Himself.