30:8Do they not reflect within themselves? God did not create the heavens and the earth, and what is between them, except with reason, and for a specific duration. But most people, regarding meeting their Lord, are disbelievers.

30:21And of His signs is that He created for you mates from among yourselves, so that you may find tranquility in them; and He planted love and compassion between you. In this are signs for people who reflect.