The Holy God having by a long and Continual Series of his Afflictive dispensations in and by the present Warr with the Heathen Natives of this land, written and brought to pass bitter things against his own Covenant people in this wilderness, yet so that we evidently discern that in the midst of his judgements he hath remembered mercy, having remembered his Footstool in the day of his sore displeasure against us for our sins, with many singular Intimations of his Fatherly Compassion, and regard; reserving many of our Towns from Desolation
Observation: The councilor is declaring that the hardships they are facing are temporary and that God will soon shower them with His Mercy.
Interpretation: The councilor is giving this as a way to invoke the remembrance of God and how He has helped them with their struggles in fighting in the War.
Contingency: They will be bestowed God's mercy because they believe God will judge them to be in the right to have success against the Native Peoples.