The poem starts out, "It's too late to call it back; that arrow sent out upon the track......." Will be so grateful to find this poem, and author.

it took too long, didn´t it ?

but here it is
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Chillicothe Morning Constitution
Saturday, January 18, 1890 Chillicothe, Missouri

An Arabc saying

Remember, three things come not back:
The arrow sent upon its track —
It will'not swerve, it will not stay.
Its speed; it flies to wound or slay.

The spoken word, so soon forgot
By thee; but it has perished not:
lu other heai-ts'tis living still.
And doing work for good or ill.

And the lost opportunity.
That cometh back no more to thee.
In vain thou weepest, in vain dost yearn.
Those three will nevermore return.

—Century Bric-a-Brac.