We bestowed wisdom on Luqman, saying, "Be grateful to God: he who is grateful, is grateful only for the good of his own soul. But if anyone is ungrateful, then surely God is self-sufficient and praiseworthy." 12 And (remember) when Luqman said to his son when he was advising him: "O my son! Join not in worship others with Allah. Verily! Joining others in worship with Allah is a great Zulm (wrong) indeed. 13 We have enjoined man to show kindness to his parents -- for his mother bears him, in hardship upon hardship, and his weaning takes two years. [We said] Give thanks to Me and to your parents; all will return to Me. 14 "But if they strive to make thee join in worship with Me things of which thou hast no knowledge, obey them not; yet bear them company in this life with justice (and consideration), and follow the way of those who turn to me (in love): in the end the return of you all is to Me, and I will tell you the truth (and meaning) of all that ye did." 15 'O my son, if it should be but the weight of one grain of mustard-seed, and though it be in a rock, or in the heavens, or in the earth, God shall bring it forth; surely God is All-subtle, All-aware. 16 "O my son! establish regular prayer, enjoin what is just, and forbid what is wrong: and bear with patient constancy whatever betide thee; for this is firmness (of purpose) in (the conduct of) affairs. 17 "And turn not thy cheek away from people in [false] pride, and walk not haughtily on earth: for, behold, God does not love anyone who, out of self-conceit, acts in a boastful manner. 18 And be modest in thy gait and lower thy voice; verily the most abominable of voices is the voice of the ass. 19