What does the happy man have for his armour as said in poem Character Of A Happy written by Henry Wotton?

In the poem "Character Of A Happy Life" by Henry Wotton, the happy man is described as having "Innocence for his armour." This means that the happy man is protected by his own purity and goodness. He is not afraid of anything because he knows that he has done nothing wrong. He is also able to trust others because he knows that they are unlikely to harm him.