In Christ, God’s promise is always “Yes,” to which I respond, “Amen”
For the Son of God, Jesus Christ, who was preached among you by us—by me, Silvanus, and Timothy—was not “Yes and no,” but in him is “Yes.” For however many are the promises of God, in him is the “Yes.” Therefore also through him is the “Amen”, to the glory of God through us.
from Positive Thinking topic