# no other man has lain with you

"no other man has had sexual relations with you" 

# if you have not gone astray

"if you have not been unfaithful to your husband" 

# and committed uncleanness

"by committing uncleanness." This phrase refers to committing adultery.

# you will be free from this bitter water

"this bitter water will not harm you, though it is able to" 

# this bitter water that can bring a curse

"this bitter water can be a curse to you"