After, &c. Compare "When". Luke 11:2-4.
Our Father. See Exodus 4:22.Deuteronomy 32:6, &c. The idolater could say to his idol "Thou art my father", so Israel was bound to do So (Isaiah 63:16; Isaiah 64:8). The Talmud so teaches.
Which. Who.
heaven. heavens. See note on Matthew 6:10.
Hallowed. Sanctified.
Thy. Note that the first three petitions are with respect to God, while the next four concern those who pray. God is to be put first in all prayer.