Make Us Watchful

O Lord our God,
make us watchful and heedful
as we await the coming of your Son,
Christ our Lord,
that when he comes and knocks,
he will find us not sleeping in sins
but awake and rejoicing in his praises;
through Jesus Christ our Lord.

Source: Gelasian Sacramentary 

Source of this version: Modified from Ancient Collects, and Other Prayers, ed. William Bright, 1902, p. 16 #4