The following great prayer was written by Thomas A Kempis 1380-1471. Prayers like this are truly timeless.
“Grant me, O Lord, to know what I ought to know,
to love what I ought to love,
to praise what delights Thee most,
to value what is precious in Thy sight,
to hate what is offensive to Thee.
Do not suffer me to judge accordig to the sight of my eyes,
nor to pass sentence according to the hearing of the ears of ignorant men;
but to discern with a true judgement between things visible and spiritual,
and above all things always to inquire what is the good pleasure of Thy will.”