“G‑dliness is everything” is the path of Abraham. Abraham understood that there is a Truth beyond all truths, an absolute reality, before which no other reality is true. Therefore, he smashed the idols and declared to all people and in all places that there is only One.

Abraham spread light.

“Everything is G‑dliness” is the path of Isaac. Isaac saw that the world is in truth G‑dly. Therefore, Isaac dug wells, in the earth and in the people. He dug away the darkness and found the spark of G‑dliness within each thing.

Isaac uncovered light.

Likutei Sichot vol. 15, pp. 191-199.