Titus 1 tells us about a sound (that is, healthy) church. Such a church has a healthy leadership and members who submit to them. Such a church has healthy teaching and teaches it with their words and deeds. Such a church has healthy living that flows out of that teaching. Thus one thing all healthy churches have in common is the word of God publicly proclaimed and privately pondered. This message will improve your Spiritual health if you take the medicine it prescribes.