No tricks. Any one who studies the word of god understands this.

James 1:26-27 If anyone thinks he is religious and does not bridle his tongue but deceives his heart, this person's religion is worthless. Religion that is pure and undefiled before God, the Father, is this: to visit orphans and widows in their affliction, and to keep oneself unstained from the world.

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Colossians 2:8 See to it that no one takes you captive by philosophy and empty deceit, according to human tradition, according to the elemental spirits of the world, and not according to Christ.

In reference to them going through the motions of their religious laws without faith:

Amos 5 21 “I hate, I despise your feasts, and I take no delight in your solemn assemblies. 22 Even though you offer me your burnt offerings and grain offerings, I will not accept them; and the peace offerings of your fattened animals, I will not look upon them. 23 Take away from me the noise of your songs; to the melody of your harps I will not listen. 24 But let justice roll down like waters, and righteousness like an ever-flowing stream.