God overlooks it as long as you don’t know any better—but that time is past. The unknown is now known, and he’s calling for a radical life-change. (Acts 17:30 MSG)
Every person inherently has a childish nature no matter their age. When we don’t get what we want we can revert to childish ways. Before you knew the behavior was wrong, it was acceptable, so to speak, but when you accepted Jesus as your Lord, and the Bible became your foundation for everything that you do, your behavior must change. No longer is it acceptable to tell everyone off who doesn’t do what you want them to, or harbor bitterness and resentment to show your disapproval and the like. Pity parties, pouting, shutting everyone out is no longer acceptable. It’s time to grow up and put away childish ways. You cannot change on your own so you will need the Holy Spirit’s help to convict you of all childish behavior.
Your story should be, “once upon a time I used to act like so and so, but God has put his finger on me and is changing me day by day.” After you accepted Christ, people should slowly start to see a change in your demeanor, your behavior, and your conversation. Our whole lives are to be spent growing up in the way of God. You are now a new creature in Christ and you are to act as such (see 2 Corinthians. 5:17). Mature Christians cannot be childish and carnal and their lives are guided by their spirits. Once you have the Word embedded in your hearts, you are now accountable for the information and putting it into practice. God expects you to act according to the Word that you are being taught, and His Word has no fault in it. Growing up hurts, but it is necessary in order to move forward with God and be a witness to all the world.
Ask the Lord to reveal to you the areas that you need to act more spiritually mature in. You want to be a vessel that He can use at all times. Ask Him to help you become what He wants you to be and help you die to self and say yes to His Spirit and His will in your thought life and in your conduct.
Meditation Scripture (s):
When I was a child, I spoke like a child, thought like a child, and reasoned like a child. When I became a man, I gave up my childish ways. (1 Corinthians 13:11 ISV)
If you sin without knowing what you’re doing, God takes that into account. But if you sin knowing full well what you’re doing, that’s a different story entirely. (Romans 2:12 MSG)