Prayer regarding a future event

Hi,

[Note: The following quote refers to prayer about a positive event, asking Gd to make it happen sooner.]

"Regarding events decreed before Gd, and testified by His prophets, to happen a set time, prayer and pleas are inappropriate. There should be only thanks for the generosity and good He will perform. Prayer may be appropriate in the future, but only after the testified time arrives, and its realization is delayed. Before this, why pray? Is it appropriate to pray for birth [to occur] before term?"

(Don Isaac Abarbanel, Maayanei haYeshuah 10:1)

Have a great day,
Mordechai