It came about
This phrase is used here to mark an important event in the story. If your language has a way for doing this, you could consider using it here.
"to their surprise." The word "behold" here shows that the brothers were surprised by what they saw.
You have bereaved me of my children
"you have deprived me of my children" or "you have caused me to lose two of my children"
All these things are against me
"all these things hurt me"