The Scriptures are clear that God calls us to care for the poor. As I write in Foundations of Economics: A Christian View,
God does make it clear that we are to help the poor. We are to be imitators of God and he tells us that he cares for the poor (Ps. 35:10). God tells us that the poor and orphaned are to be defended from would-be oppressors (Ps. 82:3). We definitely should not turn a deaf ear to the cry of the poor. In fact, God tells us that whoever ignores the plight of the poor himself shall not be heard when he calls for help (Prov. 21:13). God tells us that in times of trouble, he will deliver the one who has consideration on the poor (Ps. 41:1). Whoever is charitable to the poor lends to the Lord and God will repay him for his generosity (Prov. 19:17). The mandate to minister to the poor even includes our poor enemies (Prov. 25:21).
We receive similar instruction in the New Testament. When the rich young ruler asked Jesus what last thing he needed to do to be perfect, Jesus told him to sell all his possessions and give the money to the poor (Matt 12:21). In the early chapters of Acts we find the Apostolic Church ministering faithfully to those in need. Additionally, James clearly teaches that it is not enough to feel compassion on the poor, but we are mandated to provide them with real material help when they are in need (Jas 2:15–16).
The above is important to keep in mind when we seek to be good stewards with the wealth God gives us. We are not called to indiscriminately promote income equality, especially if it erects a perverse incentive structure. As I have noted before, there is very little biblical-scale poverty in the United States. The vast majority of what we call poverty in the US is the relative kind. That is not to say we should not be charitable toward those of lower incomes here in our country. It is to say, however, that we should recognize there is no biblical mandate to perpetuate a vast welfare state for the purpose of income redistribution.
It is also important to note that God's Word never calls us to minister to poverty or to solve the poverty problem. It calls us to love our poor neighbor. God wants us to minister to people, not conditions. This is another reason we should eschew the welfare state in favor of the ministry of the deacons who can personally interact with those people who need help.