You may doubt your own ability, but never doubt God’s—or His promises and His willingness to fulfil them.  Doubt often originates from our inclination to portray ourselves as self-confident.

Self-confidence is a concept touted by the world; it encourages us to rely on our own skills and abilities. But the Bible says, "Those who trust in themselves are fools" (Proverbs 28: 26). Reportedly, the verse at the centre of the Bible is: ‘It is better to trust in the Lord than to put confidence in man."(Psalm 118:8 NKJV)  So centre your confidence around God, not yourself or anybody else.

Do you doubt yourself and your own worth? Do you question your ability to pursue your career? Do you doubt your aptitude to form healthy relationships? Despite having lived with Jesus for almost three years and hearing His promise that He’d rise again from the dead, Thomas still said, ‘Unless I can see His wounds and touch Him, I will not believe.’ Did Jesus turn His back on Thomas because of his doubts? No, He never rejects a sincere, doubting heart! Jesus showed up in person and resolved all of Thomas’ doubts.​

​Psalm 118: 8 NKJV
It is better to trust in the Lord​, Than to put confidence in man

- Bob Gass (Word for Today)

King Solomon left among his wise sayings a prescription for sick and sad hearts, and it is one that we can safely take. A merry heart does good like a medicine.

Joy is the great restorer and healer. Gladness of spirit will bring health to the bones and vitality to the nerves when all other tonics fail and all other sedatives cease to quiet. Are you ill? Begin to rejoice in the Lord, and your bones will flourish like an herb, and your cheeks will glow with the bloom of health and freshness.

​Worry, fear, distrust, care-all are poisonous! joy is balm and healing, and if you will but rejoice, God will give power. He has commanded you to be glad and rejoice, and He never fails to sustain His children in keeping His commandments. Rejoice in the Lord always, He says. This means no matter how sad, how tempted, how sick, how suffering you are, rejoice in the Lord just where you are-and begin this moment.The joy of the Lord is the strength of our body,The gladness of Jesus is the balm for our pain, our peace and the fountain of our healing.

Proverbs 17:22
A cheerful heart is good medicine, but a crushed spirit dries up the bones

- Anonymous