David. R. Goodworth explores saying 1.7/Th8 from his book 'The Gospel of Thomas: Evolution'.

“The Kingdom is like a wise fisherman, who cast his net into the sea. He drew it up from the sea full of small fish. Among them the wise fisherman found a fine large fish. He threw all the small fish back into the sea and chose the large fish without hesitation. Those who have ears to hear, let them hear.”