“pairs” See commentary on Genesis 6:19.
“will come to you.” Noah did not have to engage in a huge animal hunt to round up all the animals to put on the ark. God brought the animals He wanted on the ark to Noah. This assured that the animals on the ark were healthy and genetically sound, with as much potential for genetic diversification as possible. We must also remember that before the Flood, all the animals ate plants (Gen. 1:30), so they were not dangerous to Noah and his family.