A writing exercise that is helpful in learning a very specific style of writing is called Emulation. This is done to match the style of a specific author.
In essence, you create an entirely new passage using an existing passage as your guide.
For example if you wanted to try to write in the same manner as the Psalmist you might copy a passage of Scripture
Shout for joy to the LORD, all the earth. Worship the LORD with gladness; come before him with joyful songs. Know that the LORD is God. It is he who made us, and we are his; we are his people, the sheep of his pasture. Enter his gates with thanksgiving and his courts with praise; give thanks to him and praise his name. For the LORD is good and his love endures forever; his faithfulness continues through all generations.
This would be an emulation example
Lift your voice to the Lord, everyone. Sing to the Lord with triumph; come to His throne with humility. There is none like our God. It is He who sustains us, and He knows us; we follow Him as the least in His Kingdom. Gratitude arrives before us as we proclaim His greatness; show honor by singing praise because the Lord is awesome and His...