Heb 11:31 By faith the harlot Rahab did not perish with those who did not believe, when she had received the spies with peace.
32 And what more shall I say? For the time would fail me to tell of Gideon and Barak and Samson and Jephthah, also of David and Samuel and the prophets: 33 who through faith subdued kingdoms, worked righteousness, obtained promises, stopped the mouths of lions, 34 quenched the violence of fire, escaped the edge of the sword, out of weakness were made strong, became valiant in battle, turned to flight the armies of the aliens. 35 Women received their dead raised to life again. (NKJV)
Me: Having faith is not the same as being perfect. Faith is the disposition of our heart towards God, but perfection involves bringing our whole being into submission to God, which never quite gets done until our Savior comes.
Notice how Rehab, labeled a harlot, is, nonetheless, declared to be an example of biblical faith. If you think through the list of the examples of faith listed in Hebrews 11, you will see that Rehab is not the only imperfect person commended for her faith. In fact, there are not many in Hebrews 11 whose life stories do not bring to mind many major behavioral inconsistencies.
This should give us hope, helping us not despair as we fight the battle to live holy. As we fail, repent and start again, we can still be, and should be trusting in the Savior.
If we do this, we can also be examples of faith.