Depression comes from worrying. When we worry about life and about death, we will suffer depression. Just like Bro Eli Soriano said, when we are worrying about life challenges and allow them to overtake our minds, such worry will give us depression. We should learn to trust in God and to obey His commandments. We should cast all our cares on Him.
Philippians 4:6-7 (KJV) Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.
And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.
The Bible tells us not to worry. It tells us to cast all our cares on God. It tells us to not to be bothered of anything. We are admonished to tell all our problems to God through prayers. We should be thankful always. We should pray to God always. We should believe in God that He is able to carry us through every problem in life. We should not allow the little pains and challenges that we are seeing to cause us to have depression.
Hebrews 9:27 (KJV) And as it is appointed unto men once to die, but after this the judgment:
Everyone will die. Whether they be rich or poor, everyone will die. The Bible says that it is appointed unto man to die. We will all die. So, there is no need to worry. We should not have fear about death. We should not worry about death. We should fix our eyes on the promise of eternal life which Jesus Christ promised us. We should not worry about death.