1) Devotedly 2) In a devout and pious manner 3) Piously 4) Religiously 5) Spiritually 6) Staunchly 7) With reverence 1) Piously 
• (adv.) Sincerely; solemnly; earnestly. • (adv.) In a devout and reverent manner; with devout emotions; piously.
De·vout'ly adverb 1. In a devout and reverent manner; with devout emotions; piously. « Cast her fair eyes to heaven and prayed devoutly .» Shak. 2. Sincerely; solemnly; earnestly. « 'T is a consummation Devoutly to be wished.» Sha...
[adv] - in a devout and pious manner
adverb in a devout and pious manner; `she was devoutly Catholic`