The Sounds of Old English. How Do Linguists Know About Ancient Pronunciation?. Looking at the alphabet—letter values do not change at random, should be somewhat similar as today, especially consonants. Vowels are a little tricky—they tend to change more.
Long and Short Vowels Contrasted
Other consonants much like expected
Contrast of short and long consonants
Our Father, who art in heaven,
Hallowed by Thy name.
Thy kingdom come, Thine will be done
On earth as it is in heaven.
Give us this day our daily bread,
And forgive us our trespasses
As we forgive those who trespass against us.
And lead us not into temptation
But deliver us from evil.