Created — Revealed to thee by me; brought to light, as things are by creation. Not — Heb. not from thence, not from these ancient times when other things were revealed to thee. Or — Heb. and (or, or, as this particle is frequently used) before this day. This day answers to now in the first clause: and seems to be added as an exposition of it. Before this time in which God hath revealed them to thee by my ministry. I knew — Either by thine own sagacity: or by the help of thine idols.
Related Commentaries of Isaiah 48:7
Isaiah 48:7
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.