I'm thinking of giving my husband's knives to my sister
Why would you want to do that?
I just want to get rid of them.
You sound like you're husband has frustrated you in some way. It's better to confront him directly. It might be best to try couples counseling at this point.
Fine, I give up.
I hope things work out. Giving away his possessions will only cause more problems and he might just but more again.