Though in outward compliments [husband and wife] may seem very kind, and in the outward things of this world, very generous, yet if they pray not for one another, they are neither kind nor generous. Hearty, fervent, frequent prayer is the greatest token of kindness and best part of giving to each other that can be.

William Gouge, Building a Godly Home, Vol. 2: A Holy Vision for a Happy Marriage, 65.