How to use "competent" in a sentence

Where hostility to the United States, in any interior locality, shall be so great and universal as to prevent competent resident citizens from holding the Federal offices, there will be no attempt to force obnoxious strangers among the people for that object.

Intelligence, patriotism, Christianity, and a firm reliance on Him who has never yet forsaken this favored land, are still competent to adjust in the best way all our present difficulty.

She thought of herself as a tough, competent, levelheaded woman who was able to deal with anything life threw at her, and she was disturbed by her continuing inability to accept Danny's death.