Hallowed be thy name

After this manner therefore pray ye: Our Father which art in heaven, Hallowed be thy name.
Matthew 6:9 (KJV)

Our calling  christians is no glory to the name of God. God's name represent His character. Taking the name of God in n vain misrepresents God's character to others (Exod. 20:7). As a Christians, we carry the name of our Savior. The way we live and relate to others is a direct reflection on the name of christ.
Doing something "In Jesus' Name" is to do something that is in accordance with His character (John 15:16).It means that Jesus would be pleased to join n us in what we are doing. If, however, our actions detract from God's reputation, He will jealously guard His name of God's reputations of people but too littles; concerned with protecting the Holy name of God. When the Israelite profaned God's name before the nations by the way they lived, God "hallowed" His name:, He made His name holy by punishing them (Ezek 36:22). When David  sinned before his nation, God publicly disciplined him in order to protect the holiness of His name.
We can so tarnish the name father before our children that it hinders them from loving God as their heavenly father. We can be such unforgiving Christian  that our sinfulness discourages people  from seeking forgivesnes from our God. We can  show such disrespect for God as we worship Him that those observing lose their reverence of Him as well.
Our Supreme desire should be to glorify the name of God by way we live.
We ought to pray daily, as Jesus taught us to, that God's name be treated as Holy.