"and he became there a nation": We are hereby apprised that Israel was distinctive there.
("and he saw our pain": as it states (Exodus 1:16): "And you see on the birthstool..."
"and our toil": as it states (Exodus 1:22): Every son that is born shall you cast in the river". Aggadah).
"great and mighty": as it is written (Shemoth 1:7) "And the children of Israel were fruitful and teemed and multiplied and became exceedingly strong, and the land was filled with them."
"and populous": as it is written (Ezekiel 16:7) "I made you as numerous as the plants of the field; you increased and grew, and you entered the prime, etc."