"In the parable of the unjust judge, Christ has shown what we should do. “Shall not God avenge His own elect, which cry day and night unto Him?” Christ, our example, did nothing to vindicate or deliver Himself. He committed His case to God. So His followers are not to accuse or condemn, or to resort to force in order to deliver themselves. COL 171.2"
"And shall not God avenge his own elect, which cry day and night unto him, though he bear long with them?"
EGW directly quotes Luke 18:7.
"Who, when he was reviled, reviled not again; when he suffered, he threatened not; but committed himself to him that judgeth righteously:"
Both passages discuss how Jesus did not retaliate when wronged, and instead committed himself to God. EGW uses this as an example for her followers.
"When trials arise that seem unexplainable, we should not allow our peace to be spoiled. However unjustly we may be treated, let not passion arise. By indulging a spirit of retaliation we injure ourselves. We destroy our own confidence in God, and grieve the Holy Spirit. There is by our side a witness, a heavenly messenger, who will lift up for us a standard against the enemy. He will shut us in with the bright beams of the Sun of Righteousness. Beyond this Satan cannot penetrate. He cannot pass this shield of holy light. COL 171.3"
"But unto you that fear my name shall the Sun of righteousness arise with healing in his wings; and ye shall go forth, and grow up as calves of the stall."
EGW directly alludes to Malachi 4:2 with the phrase "Sun of Righteousness".
"And call upon me in the day of trouble: I will deliver thee, and thou shalt glorify me."
Both passages discuss calling on God in times of trouble. EGW's passage speaks of trials and trusting in God, while Psalms 50:15 speaks of calling on God in the day of trouble.