Berkhof:

1. THE GOODNESS OF GOD. This is generally treated as a generic conception, including several varieties, which are distinguished according to their objects. The goodness of God should not be confused with His kindness, which is a more restricted concept. We speak of something as good, when it answers in all parts to the ideal. Hence in our ascription of goodness to God the fundamental idea is that He is in every way all that He as God should be, and therefore answers perfectly to the ideal expressed in the word "God." He is good in the metaphysical sense of the word, absolute perfection and perfect bliss in Himself. It is in this sense that Jesus said to the young ruler: "None is good save one, even God," Mark 10:18. But since God is good in Himself, He is also good for His creatures, and may therefore be called the fons omnium bonorum. He is the fountain of all good, and is so represented in a variety of ways throughout the Bible. The poet sings: "For with thee is the fountain of life; in thy light shall we see light," Ps. 36:9. All the good’ things which the creatures enjoy in the present and expect in the future, flow to them out of this inexhaustible fountain. And not only that, but God is also the summum bonum, the highest good, for all His creatures, though in different degrees and according to the measure in which they answer to the purpose of their existence. In the present connection we naturally stress the ethical goodness of God and the different aspects’ of it, as these are determined by the nature of its objects.

a. The goodness of God toivards His creatures in general. This may be defined as that perfection of God which prompts Him to deal bountifully and kindly with all His creatures. It is the affection which the Creator feels towards His sentient creatures as such. The Psalmist sings of it in the well known words’: "Jehovah is good to all; and His tender mercies are over all His works.

. . . The eyes of all wait for thee; and thou gives them their food in due season. Thou opens thy hand, and satisfies the desire of every living thing," Ps. 145:9,15,16. This benevolent interest of God is revealed in His care for the creature’s welfare, and is suited to the nature and the circumstances of the creature. It naturally varies in degree according to the capacity of the objects to receive it. And while it is not restricted to believers, they only manifest a proper appreciation of its blessings, desire to use them in the service of their God, and thus enjoy them in a richer and fuller measure. The Bible refers to this goodness of God in many passages’, such as Ps. 36:6 ; 104:21; Matt. 5:45 ; 6:26; Luke 6:35 ; Acts 14:17.

Louis Berkhof, Systematic Theology (Grand Rapids: Eerdmans, 1969), 70-71. [Some spelling modernized; italics original; and underlining mine.]