'Earnest' in the Bible

who also has sealed us, and given the earnest of the Spirit in our hearts.

Now he that has wrought us for this very thing is God, who also has given to us the earnest of the Spirit.

who is the earnest of our inheritance to the redemption of the acquired possession to the praise of his glory.

according to my earnest expectation and hope, that in nothing I shall be ashamed, but in all boldness, as always, now also Christ shall be magnified in my body whether by life or by death.

but, having suffered before and been insulted, even as ye know, in Philippi, we were bold in our God to speak unto you the glad tidings of God with much earnest striving.