How can He be anything but good if the essence of goodness, derived from the Father, remains unchanged in the Son, just as it does in the Spirit? Therefore, "Thy good Spirit shall lead me in the right path" (Psalm 142:10). If the Spirit received from the Son embodies goodness (see Jn. 16:14), it follows that He who imparted this goodness is also good. Since the Father is good, it is undeniable that the One who possesses all that the Father has must also be good (see Jn. 17:10). If one claims that the Son lacks goodness, they simultaneously deny it in the Father.
This conclusion is clear and requires no additional testimony; yet, we can rely on Scripture. It is stated, "The Lord is the judge of the good of the house of Israel" (cf. Is. 33:22; Ps. 7:12). Is this reference to the Son or the Father? The Father does not judge anyone, as all judgment has been entrusted to the Son (Jn. 5:22). Therefore, the Lord is the good Son. Another point is that those who come to baptism affirm the Trinity, as they are baptized in the name of the Father, the Son, and the Holy Spirit; thus, they acknowledge the Father, the Son, and the Holy Spirit. And when scripture proclaims, "Confess the Lord, for he is good" (Psalm 135:1), it is clear that the Father is good, the Son is good, and the Holy Spirit is good, yet God remains one! Moreover, "Good is the Lord to those who wait for Him" (Lamentations 3:25). Is He not the One who grants good things to the soul that seeks Him (Lamentations 3:26)? Is He not the One who satisfies your soul with good (Psalm 102:2)? And is He not the One who declares, "I am the good shepherd" (John 10:11)?
Perhaps you believe God's goodness is displayed by His mercy and avoidance of punitive judgment. While it has been previously stated that "the Judge of the house of Israel is good," you will also find, "How good is the God of Israel to the upright in heart" (Psalm 72:1)! Whom do you believe this refers to: the Father or the Son? If it pertains to the Father, then He is not good to all. Why do you undervalue the Son? If it speaks of the Son, then you acknowledge the Son as a good God, for He is the blessed God of Israel, who has visited and redeemed His people (Luke 1:68). He is both King and God of Israel, as evidenced by the words addressing Him: "Teacher, You are the Son of God, You are the King of Israel" (John 1:49).
Thus, He responds: "How is it that you do not understand that I am good when you tempt Me, even as you call Me good? I am good, not by mere pretense, but by nature, and My goodness is intrinsic." The Son is indeed good, being the radiant expression of eternal glory, the pure reflection of God's majesty, and the embodiment of His goodness (cf. Prem. 7:26). How can He be viewed as anything other than good, as He represents the image of goodness? The image of God is indeed God, and while God is one, so the image of divine goodness is good, reinforcing the idea that goodness is singular. It is indeed beneficial to trust in the goodness of God; He will judge my transgressions! Let those who refuse to accept His goodness reflect on this truth, for the tempter was knowledgeable of the law, as demonstrated in another passage. The Lord rightly stated: "No one is good but God alone" (Lk. 18:19; Mt. 19:17; Mk. 10:18), citing scripture that reads, "Do not tempt the Lord your God" (Lk. 4:12; Mt. 4:7; Deut. 6:16), leading the one who tempted Him to ultimately recognize Him as the greatest Lord, for He is indeed good.