Ideas for Sunday read alouds for 4 and 5 year old

Winnie-the-Pooh, Beatrix Potter, & Wind in the Willows were ones we enjoyed.

That is a great idea.  You could use Storytime with the Millers, as it is written for younger children.  You might also use some books from Answers in Genesis, like When Dragons Hearts were Good by Buddy Davis, or D is for Dinosaurs by Ken Ham or Dinosaurs of Eden. 

You could do games and activities around a Bible lesson on the ten commandments.  I like the idea of doing these activities on Sundays.  But we did these as part of school: http://www.biblestoryprintables.com/BiblePrintablesTenCommandments.html 

I printed bookmarks on cardstock for the kids to color and we still use them.  I also printed the sequencing cards for pictures and for numbers to play matching game with them, kind of like the Rightstart math games uses matching games.