Tafsir of An-Nahl 16:123

{Then We revealed to you}

In this "then" (thumma) lies the glorification of the status of the Messenger of Allah—may Allah bless him and grant him peace—and the exaltation of his position. It signals that the most noble honor bestowed upon the Friend of Allah, Abraham, and the greatest blessing granted to him, was that the Messenger of Allah—may Allah bless him and grant him peace—followed his creed. This is because the particle "then" indicates that this attribute is far removed in rank from all other attributes with which Allah praised him.

{The Sabbath was only appointed for those who differed over it; and indeed, your Lord will judge between them on the Day of Resurrection concerning that over which they used to differ.}