How to receive God's Blessing

Sermon synopsis: Time and again I've heard people cry, 'God hasn't blessed me. I ask Him for good things, but it doesn't help.'
Or they complain, 'I try so hard to do the right things and to be a good Christian, but it just doesn't work for me.”
Others have tasted God's goodness and want more.
We all long for God's favor, don't we? And yet it often seems elusive.
What's the secret? How can we experience God's blessing in our lives?