Numbers 14:2 And all the children of Israel murmured against Moses and against Aaron: and the whole congregation said unto them, Would God that we had died in the land of Egypt! or would God we had died in this wilderness!
How quickly we forget all that God has done for us. The children of Israel wish that they were back in Egypt. That is where their children were slaves and them too. That is where they killed their male children. That is where they were suffering.
As soon as something goes wrong we forget God and His goodness. We are quick to complain and slow to say thank you.
We need to set up a plan to think back on how good God has been to us. We need to consider all that He has done on a regular basis not to fall into this attitude of ingratitude!