بِالتَّقْوَى

بِالتَّقْوَى is a phrase (شِبْهُ الجُمْلَةِ) consisting of a particle of pulling down (a preposition) and a genitive noun

PhraseParticle / NounNoun Particle
شِبْهُ الجُمْلَةِجَارٌ وَمَجْرُوْرٌاسْمٌ مَجْرُوْرٌحَرْفُ جَرٍّ
PhraseCompoundGenitive NounParticle of pulling down/Preposition
  
to pietyبِالتَّقْوَى=التَّقْوَى+بِ
to the pietythe pietyto
Surah/Below is the only verse in the holy Quran containing the compoundبِالتَّقْوَى
Verse
96-12or that he enjoins to pietyأَوْ أَمَرَ بِالتَّقْوَى