Did Noah Lose Grandchildren in the Flood?

Every week, I answer a common question related to the end times. Today’s is about what Noah’s family at the flood means for parents today who are praying for adult children who may be left behind in the Tribulation.

Question:

Genesis 7:6 says Noah was 600 years old when he entered the ark, and only his wife, his sons, and their wives went in with him. Surely his sons had children and grandchildren by that age, which means they were ungodly and perished in the flood. This is concerning for those of us praying for adult children who are forsaking the values we raised them with and are yielding to the great deceptions of our times. We fear they will be left behind for the even greater deception and pressure of the Tribulation. What are your thoughts on this?