NET
7 Now they come into being, not in the past; before today you did not hear about them, so you could not say, ‘Yes, I know about them.’
Darby
7 they are created now, and not long ago; and before this day thou hast not heard them, lest thou shouldest say, Behold, I knew them.
KJV
7 They are created now, and not from the beginning; even before the day when thou heardest them not; lest thou shouldest say, Behold, I knew them.