Faith Needed And Dangerous

We need faith because we are not omniscience, omnipresent and omnipotent.

Omniscience
If we know all, we do not need faith. If we know, we do not need to be convinced, we do not need to be assured. We do not know, so we have to trust that those who tell us are telling the truth.

Omnipresent
We can be present physically at one spot and chronologically at a moment. Let say I can be present from now till tomorrow simultaneously, I can know the future. We need faith because we do not know the future.

Omnipotent
We cannot do everything ourselves. We need to trust someone to do it for us. We need faith in someone.

Now faith is being sure of what we hope for and certain of what we do not see. (Hebrews 11:1 NIV)
Now faith is the assurance of things hoped for, the conviction of things not seen. (Hebrews 11:1 ESV, NASB)
Faith is the confidence that what we hope for will actually happen; it gives us assurance about things we cannot see. (Hebrews 11:1 NLT)

Faith is dangerous because faith leads you to believe in things which you do not see. We hope, therefore we believe. If we have false hope, we will have false beliefs.