Claim. Satan retains legal standing to accuse humanity before God not because of his own power but because God’s identity as the Absolute Being obligates Him to apply His principles consistently — the same law that condemns Satan also protects Satan’s right to invoke it.
Elaboration. SMM quotes Satan’s argument directly: “Although I violated the law and became Satan, You, the all-knowing, almighty and absolute Being must work according to the laws You have laid down” (4.1.-the-reasons-for-satan-s-accusations, 39-88, 1971.1.10). The principle of creation required the archangel to enter heaven with perfected Adam and Eve after being loved by them — Satan invokes this to argue that neither God nor Adam may enter the Kingdom without first loving him (ibid, 219-36, 1991.8.25).
The mechanism is a paradox of lawfulness: God’s absolute authority is constituted by His perfect fidelity to His own principles. Any breach — including summarily dismissing Satan’s complaint — would undermine the foundation of God’s own legitimacy as the “great supervisor of heaven and earth, the substance of truth” (ibid, 129-215, 1983.11.5). Satan exploits God’s righteousness as his shield.
This is distinct from Satan having independent power over God. Satan’s accusations work precisely because God is more righteous than Satan — not less powerful.
See also. csg-god-bound-by-own-law, csg-god-cannot-punish-satan-unilaterally