The LORD in the Hebrew Tanakh is YHWH, the supreme deity who is the God of Israel and the whole world. He is known by many names including God, HaShem, Adonai, YHWH and Elohim. The Hebrew Bible does not mention Jesus or teach that he is God. The name of God in the Hebrew Bible is YHWH. Jews and Noahides do not pronounce the name YHWH because it is considered too holy to be pronounced. In most Bible translations, God’s name YHWH is replaced with “LORD” in capitals. Many Christians incorrectly assume that Lord means Jesus because they do not know that it says YHWH in Hebrew. 

Who is my saviour?

The Hebrew Bible teaches that YHWH is the only saviour and that it is He who rules the world, though it does not deny that other gods exist/ 

Isaiah 43:11 I, I myself, am the LORD; and beside me there is no savior. ​ 12 I have declared, and have saved, and I have proclaimed, and there was no strange god among you; therefore you are my witnesses, said the LORD, that I am God.

Psalm 22:​28 All the ends of the world shall remember and turn to the LORD; and all the families of the nations shall worship before you. ​29 For the kingdom is the LORD’s; and He is ruler over the nations.

Psalm 95: 3 For the Lord is a great God, and a great King above all gods. 4 In his hand are the deep places of the earth: the strength of the hills is his also. 5 The sea is his, and he made it: and his hands formed the dry land. 6 O come, let us worship and bow down: let us kneel before the Lord our maker.