Quran 82:6
The context of the Surah very clearly tells that this is the address towards the Quraish who had denied the message of God. However, to every rebel of God and truth, this verse can be referrred to because it is based on the universal human behaviour which can deny a truth and can be ingrateful to God despite recognizing His blessings. Keep it in mind, that God does love his people but He behaves like a compassionate Lord, not like a soft emotional mother or father.