G1492I–εἴδω–eidō

The apostles and the elders were gathered together to see about this matter.

ἰδεῖν idein “to understand”

Paul wanted to have him go out with him, and he took and circumcised him because of the Jews who were in those parts; for they all knew that his father was a Greek.

ᾔδεισαν ēdeisan “they knew”

Some therefore cried one thing, and some another, for the assembly was in confusion. Most of them didn't know why they had come together.

ᾔδεισαν ēdeisan “did know”

Paul said, "I didn't know, brothers, that he was high priest. For it is written, 'You shall not speak evil of a ruler of your people.'"

ᾔδειν, ēdein “I had known,”

What shall we say then? Is the law sin? May it never be! However, I wouldn't have known sin, except through the law. For I wouldn't have known coveting, unless the law had said, "You shall not covet."

ᾔδειν, ēdein “I had known,”

They will not teach every man his fellow citizen, Every man his brother, saying, 'Know the Lord,' For all will know me, From the least of them to the greatest of them.

εἰδήσουσίν eidēsousin “will know”