All of us can do this. Some of us are great at it -- screwing up the perspective and blaming God (or His messengers). So quickly we forget what God has done in the past. We look at our circumstances with our physical eyes rather than the spiritual ones and we get all negative.
The Israelites totally forgot that God delivered them from slavery. Instead, they remembered the fish and vegetables they had when they were slaves. They forgot about being owned by Pharaoh. They forgot about the hopeless future. They forgot about seeing their children stolen from them. They forgot about the command to throw all new-born sons in to the Nile. They forgot, forgot, forgot.
When God delivers us we have to trust in Him. We have to believe and act on His words. Otherwise, we'll fall right back into slavery. Or, if we don't fall into slavery we will be sitting on the fence as they said -- not living a worldly life but not living a Believer's life either. There will be no power in our lives. We won't have the miraculous lives God wants us to have because we're thinking too much with our flesh.
God wants us to use our brains for Him. But so easily we let fear consume them. We're comfortable there. It feels right to worry. Why? Because that's how the whole world lives! In fear!
"You were running well; who hindered you from obeying the truth?" Galatians 5:7
If you find yourself complaining about circumstances or people go to God. Please. You've fallen into fear or flesh thinking. It is easy to do. Everything but God encourages us to live that way.
"But if you bite and devour one another, take care lest you be consumed by one another. But I say, walk by the Spirit, and you will not carry out the desire of the flesh." Galatians 5:15-16
Stand tall. Stand in your faith. Don't cower. Please. We all need each other to be strong in the faith.
"Finally, be strong in the Lord, and in the strength of His might." Ephesians 6:10