You may not be totally deceived or ignorant in the knowledge of God but you can be cheated in exercising the fullness of this knowledge in this world.
And now, just as you accepted Christ Jesus as your Lord, you must continue to follow him. Let your roots grow down into him, and let your lives be built on him. Then your faith will grow strong in the truth you were taught, and you will overflow with thankfulness. Don’t let anyone capture you with empty philosophies and high-sounding nonsense that come from human thinking and from the spiritual powers of this world, rather than from Christ. For in Christ lives all the fullness of God in a human body. So you also are complete through your union with Christ, who is the head over every ruler and authority. [Col 2: 6 – 10 NLT]
Your union with Christ through salvation, has made you complete both in Him and in God.
Everything that pertains to life has been made available by God through Christ. You discover these things and exercise them only through your knowledge of God – By his divine power, God has given us everything we need for living a godly life. We have received all of this by coming to know him, the one who called us to himself by means of his marvelous glory and excellence. [2Peter 1:3 NLT]
For example, do you know every child of God is entitled to abundant life? – The thief’s purpose is to steal and kill and destroy. My purpose is to give them a rich and satisfying life. [John 10:10 NLT]
If you haven’t discovered in the Bible that you can truly walk in divine health, you would only believe that Jesus died for your sins but you will be cheated in living in the benefits of His death and resurrection.
That same measure of Faith that gave us salvation, is what you require to discover the other benefits of this Kingdom and freely enjoy them.
There isn’t a half of you elsewhere. You are complete in Him. The more you walk and grow in the knowledge of Him, the more you discover the true image of who you are in Christ.
Never forget, You are complete in Christ who is the head over every ruler and authority in heaven, on earth and beneath the earth.