I need help writing a thank you to put in the church paper after the death of my husband

You could start with thanking everyone for their kind words and prayers during this difficult time. Acknowledge the specific help given to you by the members (funeral preparation, food, prayers, visits) and how much this would have meant to your husband.
Let them know what the church meant to him (if applicable) and how every action, no matter how small, has helped you to begin to heal, a little at a time. Close with a scripture that was special to your or your husband and remind everyone your husband cherished their fellowship as much as you do.
My condolences to you during such a difficult time.

I am so sorry for your loss...

How about... "Thank you, everyone, for all your thoughts and prayers. Though my heart is heavy with sadness, it's comforting to know I have friends that I can turn to in time of need. Bless you all for everything you have done for me and my husband. "

Not knowing your situation, I just kind of put myself in your shoes. Hope that helps.

Again, so sorry for your loss... God bless you...