'Act' in the Bible

As therefore you have received the Christ, even Jesus our Lord, live and act in vital union with Him;

Therefore no one is to act as your judge in regard to food or drink or in respect to a festival or a new moon or a Sabbath day—

Let the peace of Christ [the inner calm of one who walks daily with Him] be the controlling factor in your hearts [deciding and settling questions that arise]. To this peace indeed you were called as members in one body [of believers]. And be thankful [to God always].

And whatever you do, in word or in act, do all in the name of the Lord Jesus, giving praise to God the Father through him.