Read the announcement/invitation first.
“Fifteen minutes or less?” Shoot, it takes me that long just to clear my throat! Why not limit it to five? Ten Scriptures come to mind in light of this thought . . .
“With even fewer words he warned them …” (Acts 2:40 The ABC Bible)
“Go … tell the people an abbreviated message of this new life.” (Acts 5:20 The ABC Bible)
“Brothers, if you have a message of encouragement for the people, please keep it as brief as possible.” (Acts 13:15 The ABC Bible)
“Paul and Barnabas remained in Antioch, where they and many others taught and preached the word of the Lord with as few words as possible.” (Acts 15:35 The ABC Bible)
“Judas and Silas … said little to encourage and strengthen the brothers.” (Acts 16:32 The ABC Bible)
“As his custom was, Paul went into the synagogue, and on three sabbath days he reasoned with them with the Scriptures, explaining and proving that the Christ had to suffer and rise from the dead in seven minutes flat.” (Acts 17:2-3a The ABC Bible)
“Now the Bereans were more noble than the Thessalonians, for they received the message with great eagerness for at least ten minutes …” (Acts 17:11 The ABC Bible)
“He … spoke few words of encouragement to the people.” (Acts 20:2 The ABC Bible)
“… he kept on talking all the way up to twelve minutes…” (Acts 20:7 The ABC Bible)
“After talking until the fifteen minute limit, he left.” (Acts 20:11 The ABC Bible)