Two aspects like two sides of the same coin. Absence of one makes it counterfeit (Ex: faith only, grace only, spirit only, etc.)
1) Faith and Fruit [Mark 11:22 & John 15:1,2]
2) Grace and Truth [John 1:14]
3) Spirit and Truth [John 4:24]
4) Kindness and Truth [Proverbs 3:3]
5) Law and Truth...