Adjective arketos (enough) in the Gospels-Acts

(Translation from NRSV)

Matthew

6: 34"So do not worry about tomorrow, for tomorrow will bring worries of its own. Today's trouble is enough (arketos) for today.
10: 25it is enough (arketos) for the disciple to be like the teacher, and the slave like the master. If they have called the master of the house Beelzebul, how much more will they malign those of his household!