# he kept the Passover and the sprinkling of the blood

"he commanded the people to obey God's commands concerning the Passover and to sprinkle blood on their doors" 

# the sprinkling of the blood

This refers to God's command to the Israelites to kill a lamb and spread its blood on the doorposts of every house where they lived. This would prevent the destroyer from killing their firstborn sons. This was one of the Passover commands. 

# should not touch

"would not kill"