For every person in your life, you can be a person of "grace" or a person of "grudge" but you can't be both!
At some point in our lives we will be around people that will irritate us. Not only will we be around those that irritate us, we must ask the question, do we irritate others? Sin in the world has left us with difficult and negative people. We must decide, will we be a grin-and-bear it Christian or will we have the courage to live by grace? The Bible shows us where Jesus displayed the ultimate grace. We as sinners were given something we did not deserve. Christ death on the cross was a show of grace. A sacrificial death to pay the penalty for our sin, Jesus gave us what we did not deserve. He brought us forgiveness through grace!
Grace - that which we do not deserve, unmerited favor, unearned benefits, undeserved kindness.
For it is by grace you have been saved, through faith - and this is not from yourselves, it is the gift of God. Ephesians 2:8