"...The Lord will bring to light what is hidden in darkness and will expose the motives of the heart..." (1 Cor 4:5)
"For the Word that God speaks is alive and full of power [making it active, operative, energizing, and effective]; it is sharper than any two-edged sword, penetrating to the dividing line of the breath of life (soul) and [the immortal] spirit, and of joints and marrow [of the deepest parts of our nature], exposing and sifting and analyzing and judging the very thoughts and purposes of the heart." (Hebrews 4:12, Amplified)
"Allah will take you to task for that which is intended in your hearts." (Islam, Qur'an 2.225)
"Actions will be judged only by intention..." (Islam, Hadith of Bukhari)
"When one intends to move, or one intends to speak, one should first examine one's own mind and then act appropriately with composure." (Buddhism, Shantideva, a Guide to the Bodhisattva's Way of Life 5.47)
"Let right deeds be your motive, not the fruit which comes from them." (Hinduism, Bhagavad Gita 2.47)
"...The Lord searches every heart and understands every motive behind the thoughts..." (1 Chronicles 28:9)
"The purposes of a person's heart are deep waters, but one who has insight draws them out." (Proverbs 20:5)
"The Master said: If you look at their intentions, examine their motives, and scrutinize what brings them contentment-how can people hide who they are? How can they hide who they really are?" (Confucianism, Analects 2.10)
"If profit guides your actions, there will be no end of resentment."(Analects 4.12)
Pure of Heart
"All you who come before me, hoping to attain the accomplishment of your desires, pray with hearts pure from falsehood, clean within and without, reflecting the truth like a mirror." (Shinto, Oracle of Temmangu)
"Blessed are the pure in heart, for they will see God." (Matthew 5.8)
"Know that in the body there is a bit of flesh; when it is sound the whole body is sound, and when it is corrupt the whole body is corrupt, Know, it is the heart." (Islam, Hadith of Bukhari)
"For everything there is an appropriate way of polishing; the heart's polishing is the remembrance of God." (Islam, Hadith of Bukhari)
"Just as silver smiths step by step, bit by bit, moment to moment, blow away the impurities of molten silver-so the wise, their own."(Buddhism, Dhammapada 239)
"Water makes external cleanliness. Truthfulness is the detergent of the heart." (Hinduism, Tirukkural 298)
"Create in me a pure heart, O God..." (Psalm 51:10)
"Therefore the noble-minded examine their hearts, that there may be nothing wrong there." (Confucianism, Doctrine of the Mean 33.2)
"Can you cleanse your inner vision until you see nothing but light?" (Taoism, Tao Te Ching 10)