John Gill Commentary Acts 17:20

"For thou bringest certain strange things to our ears: we would know therefore what these things mean." — Acts 17:20 (ASV)

For you bring certain strange things to our ears
Strange doctrines and strange deities, such as they had never heard of before:

we would know therefore what these things mean ;
they desire he would explain these things to them, and let them know the rise, and ground, and nature, and end, and design of them.