Which preposition to use with stedfast

to Occurrences 3%

Mr. Addison was stedfast to his principles, faithful to his friends, a zealous patriot, honourable in public stations, amiable in private life, and as he lived, he died, a good man, and a pious Christian.

in Occurrences 2%

"Whom resist stedfast in the faith.

of Occurrences 1%

The Satisfaction he enjoys there, settles into an habitual Complacency, which shines in his Countenance, enlivens his Wit, and seasons his Conversation: Even those of his Acquaintance, who have never seen him in his Retirement, are Sharers in the Happiness of it; and it is very much owing to his being the best and best beloved of Husbands, that he is the most stedfast of Friends, and the most agreeable of Companions.

unto Occurrences 1%

For it is the life of a Christian to do good and to bear wrong and to continue stedfast unto death, and this is the Gospel, which we, according to the text of the Gospel for today, shall preach in all the world.

Which preposition to use with  stedfast