Page 627 - BERESHIT

The Ben Ish Chai asks why Hashem refers to Yaakov Avinu by his title
‘Yisrael,’ and then immediately reverts to calling him by his name
Yaakov. Why did Hashem repeat Yaakov’s name? And why did Hashem
speak to Yaakov specifically at night?

Yaakov mourned for Yosef for a period of twenty-two years. During this

time, Yaakov did not merit prophecy, and was concerned that Hashem

would take him to task. Perhaps he would forfeit his elevated status,

represented by the name , which Hashem gave him years earlier.

This is why Hashem called him Yisrael. Hashem also appeared to Yaakov

at night, reassuring him that He would be with him even in the dark, bitter

galut of Egypt.