Hebrews 13:15-16 states, Through Jesus, therefore, let us continually offer to God a sacrifice of praise - the fruit of lips that confess His name. And do not forget to do good and to share with others, for with such sacrifices God is pleased.
There are at least three types of worship present here - verbal, hands-on action, and sharing/giving.
I'd like to consider the last one, sharing/giving, for just a minute. Our financial/resource sacrifices - whether given during a structured offering time on a Sunday morning or spontaneously to someone in need on a Wednesday afteroon - is worship, and is pleasing to God.
Earlier in the chapter the author instructs us to keep our lives free from the love of money, because God will never leave nor forsake us. This truth frees us up to share with and give to others. God will take care of us, so we can freely share with others. However, if we worry, love or hoard our resources, than we are bound by them, reluctant to share, displeasing God.
Something for me personally to chew on.