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(All quotations from the New King James translation unless stated otherwise).
Childlike faith refers not to a tendency to believe anything and everything we are told, but rather to an open readiness of mind, free from prejudice and preconceived ideas.
Acts 17:11 These were more fair-minded than those in Thessalonica, in that they received the word with all readiness, and searched the Scriptures daily to find out whether these things were so.
Little ones are babes in Christ:
1 Corinthians 3:1 And I, brethren, could not speak to you as to spiritual people but as to carnal, as to babes in Christ. 2 I fed you with milk and not with solid food; for until now you were not able to receive it, and even now you are still not able;
These need encouragement.
Matthew 10:42 And whoever gives one of these little ones only a cup of cold water in the name of a disciple, assuredly, I say to you, he shall by no means lose his reward.
We must humble ourselves as children to serve others and to avoid being a cause of sin if we would attain to the kingdom of God.
Matthew 18:1 At that time the disciples came to Jesus, saying, "Who then is greatest in the kingdom of heaven?" 2 Then Jesus called a little child to Him, set him in the midst of them, 3 and said, "Assuredly, I say to you, unless you are converted and become as little children, you will by no means enter the kingdom of heaven. 4 "Therefore whoever humbles himself as this little child is the greatest in the kingdom of heaven. 5 "Whoever receives one little child like this in My name receives Me. 6 "But whoever causes one of these little ones who believe in Me to sin, it would be better for him if a millstone were hung around his neck, and he were drowned in the depth of the sea.
Those who are children of God in Christ should not be despised because they have angels who minister to them.
Matthew 18:10 Take heed that you do not despise one of these little ones, for I say to you that in heaven their angels always see the face of My Father who is in heaven.
The receiving of those in Christ is necessary.
Mark 9:36 Then He took a little child and set him in the midst of them. And when He had taken him in His arms, He said to them, 37 "Whoever receives one of these little children in My name receives Me; and whoever receives Me, receives not Me but Him who sent Me.
We are to make sure that we do not hinder those who turn to Christ.
Mark 10:13 Then they brought little children to Him, that He might touch them; but the disciples rebuked those who brought them. 14 But when Jesus saw it, He was greatly displeased and said to them, "Let the little children come to Me, and do not forbid them; for of such is the kingdom of God. 15 "Assuredly, I say to you, whoever does not receive the kingdom of God as a little child will by no means enter it." 16 And He took them up in His arms, put His hands on them, and blessed them.
We are to receive the gospel with an open mind.
Mark 16:15,16 And He said to them, Go into all the world and preach the gospel to every creature. "He who believes and is baptized will be saved; but he who does not believe will be condemned.
Belief of the gospel without baptism is of no value and Belief or faith is nothing unless accompanied by action.
James 2:17-24 Thus also faith by itself, if it does not have works, is dead. But someone will say, "You have faith, and I have works." Show me your faith without your works, and I will show you my faith by my works. 19 You believe that there is one God. You do well. Even the demons believe—and tremble! 20 But do you want to know, O foolish man, that faith without works is dead? 21 Was not Abraham our father justified by works when he offered Isaac his son on the altar? 22 Do you see that faith was working together with his works, and by works faith was made perfect? 23 And the Scripture was fulfilled which says, "Abraham believed God, and it was accounted to him for righteousness." And he was called the friend of God. 24 You see then that a man is justified by works, and not by faith only.
What we believe is crucial. There is only one doctrine.
1 Timothy 1:3 As I urged you when I went into Macedonia—remain in Ephesus that you may charge some that they teach no other doctrine,
1 Timothy 4:6 If you instruct the brethren in these things, you will be a good minister of Jesus Christ, nourished in the words of faith and of the good doctrine which you have carefully followed.
2 John 1:10 If anyone comes to you and does not bring this doctrine, do not receive him into your house nor greet him;
There is only one gospel.
Galatians 1:8 But though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed. 9 As we said before, so say I now again, If any man preach any other gospel unto you than that ye have received, let him be accursed.
As there are many churches with differing doctrines and gospels we need to examine them carefully against the Bible to avoid being deceived.
Matthew 7:13 Enter by the narrow gate; for wide is the gate and broad is the way that leads to destruction, and there are many who go in by it. 14 "Because narrow is the gate and difficult is the way which leads to life, and there are few who find it.
Worship must be according to scripture and not the commandments of men.
Colossians 2:20 Therefore, if you died with Christ from the basic principles of the world, why, as though living in the world, do you subject yourselves to regulations 21 "Do not touch, do not taste, do not handle," 22 which all concern things which perish with the using—according to the commandments and doctrines of men? 23 These things indeed have an appearance of wisdom in self-imposed religion, false humility, and neglect of the body, but are of no value against the indulgence of the flesh.
Worship must be with holiness (separation from sins)
Psalms 96:9 O worship the LORD in the beauty of holiness:
Worship must be in spirit (correct attitude of mind) and truth (no false doctrine).
John 4:23 But the hour is coming, and now is, when the true worshipers will worship the Father in spirit and truth; for the Father is seeking such to worship Him. 24 "God is Spirit, and those who worship Him must worship in spirit and truth.
Worship must be that of a living sacrifice.
Romans 12:1 I beseech you therefore, brethren, by the mercies of God, that you present your bodies a living sacrifice, holy, acceptable to God, which is your reasonable service.
We are told of the early converts; that after belief and baptism:
Acts 2:42 And they continued steadfastly in the apostles’ doctrine and fellowship, in the breaking of bread, and in prayers.
We should, if we would be children of God, follow their example.
I hope this helps.