The man who offers all his actions to God is different from the man who performs all actions for God and they're different from the man who sacrifices the fruits of his labor in the name of God,
The one who offers all his actions to God believes that he's simply a puppet in the hands of God; that he alone does not have the ability to perform any action but it is the power of God due to which he can do anything and everything. His senses, mind and body - all in the hands of God and they work according to what God wants them to do. Such a person can never have any attachment or sense of ownership over his actions or the results of his actions. Whatever he gets in life, be it joy or sorrow, he takes it as a gift from God.
The man who performs all his actions for God does not believe that he's a puppet in His hands; but believes that God is the supreme one who loves him and is his friend. He feels that it is his duty to serve God and to follow his orders. Thus he performs every action according to God's commandments and with the sole purpose of serving Him. Again such a person can never bear attachment towards either his actions or the results of his action.
The man who sacrifices the fruits of his labor believes neither that God is the power behind all his actions nor that he does everything for God. He believes that is the duty of mankind to work and that a man's right is limited to the performance of the work and not the outcome; that one must keep doing work in accordance with the scriptures and for the sustenance of the body but never get bound to its outcomes. Thus he sheds any attachment towards the worldly objects.