“Why do you take for granted that God IS good? How do you know He’s not just lying to you and making you think you know the truth?”
That’s where trust comes in.
If you don’t trust God, then you are calling Him a liar.
Trust is a foundation of any good relationship. Banks run on trust. Planes fly on trust. If you didn’t trust a plane or the pilots, you wouldn’t entrust yourself to them by boarding their plane.
When you step into an elevator, you are exercising trust. But banks can betray our trust and planes and elevators can let us down (when we don’t want to go down).
However, when you trust in God your will never ever to disappointed, because your faith rests on this biblical foundation: “It is impossible for God to lie.”