Faith abases men and exalts God, it gives all the glory of redemption to God alone. - Jonathan Edwards

True gratitude or thankfulness to God for his kindness to us, arises from a foundation laid before, of love to God for what he is in himself; whereas a natural gratitude has no such antecedent foundation. The gracious stirrings of grateful affection to God, for kindness received, always are from a stock of love already in the heart, established in the first place on other grounds, viz. God's own excellency.

For when God is said by these things to try men and prove them, to see what is in their hearts and whether they will keep His commandments or no, we are not to understand, that it is for His own information, or that He may obtain evidence Himself of their sincerity (for he needs no trials for His information); but chiefly for their conviction, and to exhibit evidence to their consciences...
So when God tempted or tried Abraham with that difficult command of offering up his son, it was not for His satisfaction, whether he feared God or no, but for Abraham's own greater satisfaction and comfort, and the more clear manifestation of the favour of God to him.

Grace is the seed of glory, the dawning of glory in the heart, and therefore grace is the earnest of the future inheritance.