Many professing Christians claim to worship God in what they do. There are many professing Christian organisations involved in many 'social justice' causes such as feeding the poor, providing shelter for the homeless and clothing the naked. Indeed, the Bible does teach that the Christian should be helping the needy. Jesus said: "Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me" (Matthew 25:40).
However, there is a very real danger in seeking to do acts for God. The danger is to be deceived into think that one is worshiping God by doing certain acts, whether it is feeding the poor, clothing the needy, or even preaching the Gospel. Doing any acts which God commands does not mean that one is worshiping God, or even that one's heart is right with God. While this may seem obvious, and you may be thinking "of course", it is all to easy to say that one is worshiping God and putting God first, simply by doing certain things, whatever they may be.
God is to be worshiped in one way: in Spirit and in Truth (John 4:24). This means to worship God by the power of the Holy Spirit and the Lord Jesus Christ, in Jesus Christ, through Lord Jesus Christ. The only way to serve God is to obey God's commands. Yet, it is not mere acts that make one a person who worships God first. It is doing these acts in Jesus Christ, Son of God, that makes one worship God in Spirit and in Truth. For Jesus is the Way, the Truth and the Life. No one can come to the Father except through Him (John 14:6). This means not only is the only way to be reconciled with God through Jesus, but the only way to worship God is to be IN Jesus. Acts of charity, helping one's family and providing for them or preaching the Gospel is not acts of worship in themselves. Rather, it is only when one does them in Christ, for Christ, through Christ that one is truly worshiping God.