Exodus 6:3

I appeared to Abraham, to Isaac, and to Jacob as God Almighty, but by My name the Lord I did not make Myself known to them.

Note Hebrew El-Shaddai

BSB · Berean Standard Bible
And I appeared unto Abraham, unto Isaac, and unto Jacob, by the name of God Almighty, but by my name JEHOVAH was I not known to them.
KJV · King James Version
I appeared to Abraham, to Isaac, and to Jacob, as God Almighty; but by my name the Lord I was not known to them.

Note Lord or God in all caps is from the Hebrew יהוה Yahweh except when otherwise noted as being from the short form יה Yah.

WEB · World English Bible
and I appeared unto Abraham, unto Isaac, and unto Jacob, as God Almighty; but by my name Jehovah I was not known to them.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

Exodus 6:3
God Almighty.{El shadday,} God Almighty; for {shadday} is evidently of affinity with the Arabic {shadid,} strong, mighty, and {shiddat,} strength, might; so the LXX. in Job render it [panto krator,] Vulgate, in Pentateuch, {Omnipotens,} and Syriac, in Job, {chasino.}
Genesis 17:1; Genesis 28:3; Genesis 35:11; Genesis 48:3
JEHOVAH
Exodus 3:14; Genesis 12:7, 8; Genesis 13:18; Genesis 22:14; Psalm 68:4
JAH
Psalm 83:18; Isaiah 42:8; Isaiah 44:6; Isaiah 52:5, 6; John 8:58; Revelation 1:4