It's impossible to please God apart from faith. And why? Because anyone who wants to approach God must believe both that he exists and that he cares enough to respond to those who seek him.
What an amazing picture of how simple it is to come to Him, while still holding true to how deeply we must believe in and commit to Him. God has set us up to succeed in that He tells us to come and seek Him by faith and that He actually 'cares enough to respond to those who seek Him.' He cares so much so that He provided His only son so that we could be reconciled through the forgiveness of our sins, provides the ability for us to do what He sets before us, remains unchanging in the way He relates to us throughout time, and loves us unconditionally through it all. If anyone was ever deserving of our faith, it is Him.
Whether you're going through something difficult or all seems well, remember that He is unfailing in His promises and love toward those who seek Him (Psalm 119:89-90; Psalm 103:17-18). He has shown Himself to be trustworthy, always working things out for our good (Romans 8:28). He is the one who knows the beginning from the end, and no matter what you see with your natural eyes, you can always have faith in God, knowing that He has your best in mind. He has said, 'I will never leave you or forsake you' (Hebrews 13:5) so you can trust in Him with all your heart (Proverbs 3:5-6). He truly is the rewarder of those who seek Him diligently, with a heart that's full of faith.