Then Isaac sowed in that land, and received in the same year an hundredfold: and the LORD blessed him…thou art now the blessed of the LORD. – Genesis 26:12-14; 27-29

There are some of God’s people who are so evidently favoured of heaven that even those who despise and oppose them cannot help saying of them, “They are the blessed of the Lord.” I wish that we were all such; so distinguished by piety, so marked out by strength of faith and prevalence of prayer, that even our Abimelechs might be forced to say to each of us, “Thou art now the blessed of the Lord.” We read in the twelfth, thirteenth, and fourteenth verses, “Then Isaac sowed in the land, and received in the same year an hundredfold: and the Lord blessed him. And the man waxed great, and went forward, and grew until he became very great: for he had possession of flocks and possession of herds, and great store of servants.” Prosperity is not always a token of blessing. It may be proof of the Lord’s favour, and it may not be…Nevertheless, it is true that worldly prosperity may be sent, and has been sent, to the children of God, as a token of divine favour. It is not always when we eat the quails that they make us ill; God can send them in such a way that we may enjoy them and be strengthened by them. He can give riches as well as poverty. That was the Philistines’ reason, and it is a Philistine’s reason. It is not a very satisfactory one, but it has some force, for the Lord Jesus Himself gave the sign of blessing upon the meek, saying, “They shall inherit the earth;” and in the same memorable discourse upon the mount, He uttered the exhortation and promise, “Seek ye first the kingdom of God, and His righteousness; and all these things”-the things which the Gentiles seek after-“shall be added unto you.” So, we may fairly construe the “mercies of God” as a sign of His blessing. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2238.cfm