Sentence:  This is brought out in the common religious ethos that prevails even in the denominationally diverse audiences at many secular semi-public and public occasions in the United States ; and it is <WSD>evidenced</WSD> in the prayers offered , in the frequent religious allusions , and in the confirmation of points on religious grounds . 
Meaning of the word marked with <WSD> tags:  provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes