The number "1" is a number and a numerical digit.
It is the first and smallest positive number.
Although it is the smallest in value, yet it can also have a significant meaning.
The meaning becomes prominent when the Scripture mentions about the "one lost sheep" or the "one who hears the Word of God" and other references to that number.
In the gospel, that number came up as part of a prophecy by Caiaphas, the high priest of that year.
Though he didn't intend it as a prophecy, what he said fulfilled God's plan of salvation.
By the death of that one man, Jesus, God's plan of salvation for the world was realised.
Similarly, whatever each one of us does for the love of God and for the love of others will bring about God's saving grace for the world.
May we always remember that what each one of us does has a significance and an effect on others.