watchful: Revelation 16:15; Isaiah 56:10, Isaiah 62:6-7; Ezekiel 34:8-10, Ezekiel 34:16; Zechariah 11:16; Matthew 24:42-51; Matthew 25:13; Mark 13:33-37; Acts 20:28-31; 2 Timothy 4:1-4; 1 Peter 4:7, 1 Peter 5:8
strengthen: Revelation 2:4; Deuteronomy 3:28; Job 4:4-5, Job 16:5; Isaiah 35:3; Luke 22:31-32; Acts 18:23