Who is God referring to when said i will never leave you or forsake you?

Deuteronomy 31:6 (NIV) - "Be strong and courageous. Do not be afraid nor terrified because of them , for the LORD your God goes with you; He will never leave you nor forsake you."

Hebrews 13:5 (NIV) - "Keep your lives free from the love of money and be content with what you have, because God has said, 'Never will I leave you; never will I forsake you.'"