Praying for your husband sends a strong message to God that your husband is a priority in your life. Praying for our spouses reflects the intimate relationship we have with them. Nobody knows them the way we do. We know their challenges and weaknesses, and we can lift them up in prayer specifically over this.
Rejoice always, pray without ceasing, give thanks in all circumstances; for this is the will of God in Christ Jesus for you. —1 Thessalonians 5:16-18