Psalms 50:4

“Remember me, O Lord, with the favour that thou bearest unto thy people, etc.] The Lord has a special and peculiar people, whom he has chosen, taken into covenant, given to his Son, redeemed by him, who are called by grace, and brought to glory: to these he bears a peculiar favour, loves with an everlasting love; which he has shown in the choice of them; in the gift of his Son to them; in their regeneration, and eternal salvation. Now nothing can be more desirable than an interest in this favour, in which is life, spiritual and eternal; is the strength and security of believers, the source of their comfort, and the foundation of their happiness: to be remembered with this is to have a view of…”

“above--literally, "above" (Gen 1:7). heavens . . . earth--For all creatures are witnesses (Deu 4:26; Deu 30:19; Isa 1:2).”

“He shall call to the heavens from above - He will call on all the universe; he will summon all worlds. The meaning here is, not that he will gather those who are in heaven to be judged, but that he will call on the inhabitants of all worlds to be his witnesses; to bear their attestation to the justice of his sentence. See Psalms 50:6. The phrase “from above” does not, of course, refer to the heavens as being above God, but to the heavens as they appear to human beings to be above themselves. And to the earth - To all the dwellers upon the earth; “to the whole universe.” He makes this universal appeal with the confident assurance that his final sentence will be approved; that the universe…”

“Call - To the inhabitants of them, all angels and men, whom he calls in for witnesses of the equity of his proceedings. Psalms 50:5”

“50:4-6 The Lord is coming to bring righteousness. This hope encourages his faithful people, but those who have been unfaithful will not experience blessing when the heavens above and earth below testify against them (cp. Deut 30:19; 31:28; 32:1; Isa 1:2). The Lord comes to restore order to the world (Pss 5:8; 22:31; 33:5; 40:9; 50:6; 71:16; 97:6).”

“call: Psa 50:6; Deu 4:36, Deu 30:19, Deu 31:28, Deu 32:1; Isa 1:2; Mic 6:1, Mic 6:2 judge: Psa 96:13, Psa 98:9; Isa 11:3, Isa 11:4; Joh 5:22, Joh 5:23 Psalms 50:5”

“The judgment scene. To the heavens above (מעל, elsewhere a preposition, here, as in Gen 27:39; Gen 49:25, an adverb, desuper, superne) and to the earth God calls (קרא אל, as, e.g., Gen 28:1), to both לדין עמּו, in order to sit in judgment upon His people in their presence, and with them as witnesses of His doings. Or is it not that they are summoned to attend, but that the commission, Psa 50:5, is addressed to them (Olshausen, Hitzig)? Certainly not, for the act of gathering is not one that properly belongs to the heavens and the earth, which, however, because they exist from the beginning and will last for ever, are suited to be witnesses ( Deu 4:26; Deu 32:1; Isa 1:2, 1 Macc. 2:37). The…”