The ability to face the future with confidence. For believers this is possible because of their knowledge of God.
Optimism resulting from faith
See also
Confidence in God
Confidence in what God can do
Confidence in what God will do in the future
Confidence founded on God's grace
Encouragements to be optimistic
Examples of optimism
In the OT
The apostle Peter
The apostle Paul
The apostle John
Misplaced optimism
Trusting in anyone or anything other than God
Presumption