'Concern' in the Bible

"If I desire him to remain till I come," replied Jesus, "what concern is that of yours? You, yourself, must follow me."

Hence the report spread among the brethren that that disciple would never die. Yet Jesus did not say, "He is not to die," but, "If I desire him to remain till I come, what concern is that of yours?"

Then the people all set upon Sosthenes, the Warden of the synagogue, and beat him severely in front of the court. Gallio did not concern himself in the least about this.

Afterwards he went into the synagogue. There for three months he continued to preach fearlessly, explaining in words which carried conviction the truths which concern the Kingdom of God.