Fear of Isaac is a name that Jacob spoke in reference to the relationship that his father, Isaac, had with God. The Hebrew word, pakhad, is a strong one and can mean terror or awe. It is not clear why Isaac related to God in this way.
Fear of Isaac in Hebrew:
Strong’s Concordance numbers: 6343, 3327
Bible reference: Gen. 31:42 (see also verse 53)
Jacob said to his uncle, Laban:
If the God of my father, the God of Abraham and the Fear of Isaac, had not been with me, you would surely have sent me away empty-handed. But God has seen my hardship and the toil of my hands, and last night he rebuked you. (Genesis 31:42 NIV)