Later on...
Later on, the family grew larger and larger:ِ ``And enjoin the prayer on your family, and insist upon it. We do not ask you for sustenance. We are sustaining you and the good end is for piety.'' A believer should not worry about the necessities and ordinary needs of life. That's for God to provide for them all; if they are indeed [ 148 ] truthful believers. A Godly person looks for special provisions of the righteous life in the service of God, which are more spiritual and less physical.
The next verse (NO.132) points at one of the excuses of the unbelievers who said:ِ ``Why does he not bring us a sign?'' And immediately this is answered:ِ ``Has there not come to them the evidences that are in the former Scriptures?'' Here, by evidences, the Holy Qura"n is meant, which includes the Divine Truths that were found in the Scriptures, like the Bible and the Gospel.
Some commentators also understand that the objection was put forth by the people of the Book, who claimed to have believed in the former revelations, and this was when they already had the convincing signs in their own Book. But still they were not convinced by the signs, which may imply that they were not true to their own faith, and were not even straight with themselves!