Acts 15:22-31 / John 15:12-17
In the secular world, to be authorised to do something has this meaning of being genuine and proper.
So we will come across phrases like authorised dealer, authorised distributor, authorised seller, authorised workshop, etc.
The word "authority" carries a lot of weight behind it, and it also carries the approval, recognition, endorsement and permission of the organisation.
On the other hand, to act without authority would mean defiance, opposition, disobedience and dissent.
In the 1st reading, the letter that the apostles and elders sent to the churches in Antioch, Syria and Cilicia has these words: We heard that some of our members have disturbed you with their demands and have unsettled your minds. They acted without any authority from us, ...
So acting without authority would cause disturbance, annoyance, confusion and division even.
In the gospel, Jesus said to His disciples: This is my commandment - love one another as I have loved you.
It is a commandment from our Lord Jesus, and in a way it also carries the power of an authorisation.
When we carry out that commandment of love, we have the power of Jesus with us as we proclaim His love.
Through us, the power of the love of Jesus will flow to others and it is the love of Jesus that will bring about unity, peace and joy.
Let us go forth and carry out that commandment of love, and with that let us also know that we carry the authority and power of the love of Jesus.