Isaiah 66:12 For thus says the Lord, ‘ . . . you shall be nursed, you shall be carried on her hip, and be trotted on her [God’s maternal] knees . . .’
I'm not actually responsible for the sermon on Mothering Sunday but if I were I would dwell on scripture's portrayal of the mothering God!
This is what I'm hinting at in the poster I've created for the service. Creating the church's posters, as well as being great fun, can lead to some interesting reflections. (pic by eldest daughter when she was four - ahhh!)