Say: 'O mankind, I am the Messenger of God to you all, of Him to whom belongs the kingdom of the heavens and of the earth. There is no god but He. He gives life, and makes to die. Believe then in God, and in His Messenger, the Prophet of the common folk, who believes in God and His words, and follow him; haply so you will be guided.' 158 And of Musa's people was a party who guided (people) with the truth, and thereby did they do justice. 159 We divided them up into twelve tribes, each a whole community, and We revealed Our will to Moses, when his people asked for water, saying, "Strike the rock with your staff." Twelve springs gushed from it and each tribe knew its drinking place. We caused the clouds to draw their shadow over them and sent down for them manna and quails, saying, "Eat the good things We have given you." They did not wrong Us; rather it was themselves they wronged. 160 And remember it was said to them: "Dwell in this town and eat therein as ye wish, but say the word of humility and enter the gate in a posture of humility: We shall forgive you your faults; We shall increase (the portion of) those who do good." 161 The wicked among them changed and perverted the word We had spoken to a word unpronounced; so We sent from heaven retribution on them for all their wickedness. 162