21yet he has no firm root in himself, but is only temporary, and when affliction or persecution occurs because of the 13:21 I.e., messageword, immediately he 13:21 I.e., from the faithfalls away.
21yet he has no [substantial] root in himself, but is only temporary, and when pressure or persecution comes because of the word, immediately he stumbles and falls away [abandoning the One who is the source of salvation].
21But they have no roots. So they last only a short time. They quickly fall away from the faith when trouble or suffering comes because of the message.