Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why

thereat

adverb
At that place. Wide is the gate, and broad is the way, that leadeth to destruction, and many there are who go in thereat. Matthew 7:13.

thereat

At that; at that thing or event; on that account. Every error is a stain to the beauty of nature; for which cause it blusheth thereat.