2:83
وَإِذْ أَخَذْنَا مِيثَاقَ بَنِي إِسْرَائِيلَ لاَ تَعْبُدُونَ إِلاَّ اللّهَ وَبِالْوَالِدَيْنِ إِحْسَاناً وَذِي الْقُرْبَى وَالْيَتَامَى وَالْمَسَاكِينِ وَقُولُواْ لِلنَّاسِ حُسْناً وَأَقِيمُواْ الصَّلاَةَ وَآتُواْ الزَّكَاةَ ثُمَّ تَوَلَّيْتُمْ إِلاَّ قَلِيلاً مِّنكُمْ وَأَنتُم مِّعْرِضُونَ
And remember We took a covenant from the Children of Israel (to this effect): Worship none but Allah; treat with kindness your parents and kindred, and orphans and those in need; speak fair to the people; be steadfast in prayer; and practise regular charity. Then did ye turn back, except a few among you, and ye backslide (even now).
14:24
أَلَمْ تَرَ كَيْفَ ضَرَبَ اللّهُ مَثَلاً كَلِمَةً طَيِّبَةً كَشَجَرةٍ طَيِّبَةٍ أَصْلُهَا ثَابِتٌ وَفَرْعُهَا فِي السَّمَاء
Seest thou not how Allah sets forth a parable? - A goodly word like a goodly tree, whose root is firmly fixed, and its branches (reach) to the heavens,- of its Lord. So Allah sets forth parables for men, in order that they may receive admonition.
22:24
وَهُدُوا إِلَى الطَّيِّبِ مِنَ الْقَوْلِ وَهُدُوا إِلَى صِرَاطِ الْحَمِيدِ
For they have been guided (in this life) to the purest of speeches; they have been guided to the Path of Him Who is Worthy of (all) Praise.
35:10
مَن كَانَ يُرِيدُ الْعِزَّةَ فَلِلَّهِ الْعِزَّةُ جَمِيعاً إِلَيْهِ يَصْعَدُ الْكَلِمُ الطَّيِّبُ وَالْعَمَلُ الصَّالِحُ يَرْفَعُهُ وَالَّذِينَ يَمْكُرُونَ السَّيِّئَاتِ لَهُمْ عَذَابٌ شَدِيدٌ وَمَكْرُ أُوْلَئِكَ هُوَ يَبُورُ
If any do seek for glory and power,- to Allah belong all glory and power. To Him mount up (all) Words of Purity: It is He Who exalts each Deed of Righteousness. Those that lay Plots of Evil,- for them is a Penalty terrible; and the plotting of such will be void (of result).