Translation:

27. Allah will establish in strength those who believe with the Word that stands firm in this world and in the Hereafter; but Allah will leave to stray those who do wrong: Allah doeth what He willeth.

Notes (Tafseer)

1903. His Will and Plan may be above comprehension, but will prevail over all things. It is not like the will of man, who may plan good things but is not necessarily able to carry them out.