meaning or the story behind your children's name?

I have a two years old son and his name is Yeso Izech. When my husband and I are looking for a name to our baby, it happened that we passed by into a bookshop that sells used book. When I was searching for a book in their shelves i saw a large book with the title Babies Names so i scan the pages until i found the name that i was looking for, for my baby's name. Yeso - is a Hebrew word meaning saviour. Letter Y instead of letter J because in Hebrew they don't have letter J. The second name Izech is supposed to be Isaac but then my husband said that we should change the spelling based on the sound of the word Isaac. What about your child's name?