"Faith is being sure of what we hope for, and certain of what we do not see." (Hebrews 11)
To have faith means to believe. It means to place your trust, your confidence, and your hope in someone or something greater than yourself.
But faith is only as good as the object in which it is placed. If we put our faith in earthly people or things, sooner or later we are going to be let down. For we live in a fallen world, full of sinful people and broken things, and in the end they are unable to deliver the goods, to give us what we are all looking for, something to believe in.
Don't put your faith in earthly people or things, and for that matter don't even put your faith in our own faith!
There is only One in whom we can fully trust to have faith in and believe. There is only One Who always keeps His promises and in whom we can place our hope. There is only One Who is worthy of all of our worship, honor, and praise. There is only One in whom there is forgiveness of sins and eternal salvation for all believe. There is only one way to heaven, and it is by grace through faith in Jesus Christ, the Son of God and Savior of the World.
Believe in Him. Have faith in Him. Put your trust in Him, and you will be saved.