Translation:

13. That they should not believe in the (Message); but the ways of the ancients have passed away.

Notes (Tafseer)

1947. Sects, divisions, and systems invented by men tend to pass away, but Allah's pure Truth of Unity endures for ever. This we see in history when we study it on a large scale. Cf. the parable in xiv. 24-26 Khalat: I have translated it here in the same sense as in xiii. 30 x. 102, and other places. Some Commentators give it a slightly different shade of meaning. The other meaning is seen in xlviii. 23.