As has been pointed out previously, the examples given from Acts in the original post were not examples of socialism or communism. They were an example of communalism which individuals of their own free will had chosen to partake in. They did this for a reason, which was to devote themselves to God and to the preaching the gospel, they were living together as a family for a common purpose, which had nothing to do with the form of Government or economic system is best for a society.
That aside, Jesus himself said “you will always have the poor among you” in John 12:8, Matt 26:11, Mark 14:7. That certainly doesn’t sound like he was in favor of redistributing the income of those who have earned it.
The fact is, the bible does not promote socialism or communism, by which the Government is responsible to collect taxes and set up programs and redistribute funds as it sees fit.
The bible teaches dependence on God to provide for our needs, not putting the Government in Gods place to take care of everybody. By elevating the government to this position, one effectively displaces God. In doing this, one shows they no longer trust in God. Instead of belief and trust in God they choose to place their dependence on the Government. (a violation of the first commandment - Thou shalt have no other Gods before me Ex 20:3 - for those of a religious bent)
If that is your belief, you are not walking the walk of a Christian who believes and trusts in his spiritual father to provide for him, but you are walking the walk of the natural man, the 5 sense man who cannot trust God and only believes what he can see first before he will believe, and does not believe God.
The bible teaches individual responsibility. It teaches the law of sowing and reaping – what a man sows that shall he reap; God blesses individuals, and teaches the consequences of not being productive to those who do not take individual responsibility - “if a man does not choose to work, neither shall he eat” (2 Thes 3:10). Notice that it does not say if a man doesn’t work then the government will take over, give him food stamps and put him on welfare so he can live off of other people’s labor. The bible teaches individualism, the individual is responsible for himself.
Capitalism itself is simply a system of exchange. It is a value exchange where one item of value is exchanged for another item of value, as determined by the parties involved in the exchange. It promotes free will, freedom of the individual to choose, and the ability to prosper according to the benefit provided to others.
God is an individual God who prospers individuals and people who honor him.
Genesis 39:2
And the LORD was with Joseph, and he was a prosperous man; and he was in the house of his master the Egyptian.
Even as a slave, God prospered Joseph because Joseph obeyed God. God prospers individuals according to their faith in him.
In every verse where it mentions God prospering people in the Old Testament, it says the Lord was with them.
God made Abraham the richest man in the world at that time. He did the same with Isaac, with David, and Solomon. God made each of these individuals to prosper, and these were each the wealthiest men of their day.
Even Job, after going through the lowest point in his life, having lost everything, regained double his former prosperity afterward when God blessed him as a faithful believer. He made Job, an individual, rich because all through his trials he held steadfast to his belief in God. (Job 42:10-12)
God blesses the righteous, individuals who know, trust, and believe God (proverbs 10:6).
A believers walk is an individual thing, and there are over 130 verses in the bible that state that God will bless or has blessed individuals who believe and trust in him. There is not one verse in the entire Bible where God says for men to set up distribution systems of their own to take from one group of people by force and to redistribute to others who do not believe or trust in God. That is not scriptural at all, but is the reasoning of the natural man, operating solely by his five senses.
In fact, the Bible says that it is a mans individual responsibility to provide for his family and relatives, not the Governments, and that if he doesn’t do this then he has “denied the faith and is worse than an unbeliever”. See 1 Tim 5:8
Socialism and Communism are both wealth destroying systems, taking from those who produce, demoralizing and disincentivizing them, and redistributing to those who do not produce. They both elevate the Government above God as the provider for mans needs, and as such they are contrary to Gods word.
Capitalism (also known as the “Free Enterprise System” in accordance with free will, one of Gods primary tenants) on the other hand, rewards the individual, encourages production and creativity, and is a wealth creation system for those who utilize it by providing greater value to others, and which rewards them for doing so. In the free enterprise system, man depends on God for his needs to be met, for market conditions to be favorable, and for God to prosper him. In so doing, it places God first, where he belongs.
There are a number of verses saying that a man should profit from his labor, should enjoy the fruit of his labor, enjoy the first fruits of his labor, and so on. There are no verses stating someone else should receive the profits from his labor, or decide how much of his profits he should be able to keep, or that anyone should take from his profits and give it to someone else. Isa 3:10, 2 Tim 2:6 etc.
There is also the aspect of Abrahams blessing. Abrahams blessing was not given to all men, it was given to the seed of Abraham. Abrahams faith was counted as righteousness by God because he believed Gods promise to give him a son when he was 100 years old and to make him the father of many nations. There are a number of blessings mentioned in the old testament which were given to Abrahams decendants, one of which was prosperity. According to Gods word, he did not promise prosperity to everyone, he promised it specifically to Abrahams seed. So, who are Abrahams seed? Individuals who through faith believe God raised jesus from the dead and have received his spirit within according to Gal 3:29.
As far as the question of what to do with the poor, Gods word teaches charity, giving with a cheerful heart to those in need. It is done by individuals of their own free will, not by some third party dicating what they think is fair or how much of ones own labor he is allowed to keep. Deut 15:11 Proverbs 22:9 Psalms 41:1-2 Luke 6:38 1 Tim 6:17-18etc.
As society's are comprised of believers and unbelievers, which form of Government or economic system is best for everyone is open to interpretation and opinion. Which form of Government or economic system is in accordance with Gods word, however, is one that puts God first; provides man with the full rewards of his labor; protects mans individual sovereignty, rights and freedoms; and allows God to prosper those individuals he determines is right and proper. By that definition, Capitalism meets the criteria on every count, while Socialism, unfortunately, does not.
He who trusts in the LORD will prosper.
Proverbs 28:25b