"While the world is progressing in wickedness, none of us need flatter ourselves that we shall have no difficulties. But it is these very difficulties that bring us into the audience chamber of the Most High. We may seek counsel of One who is infinite in wisdom. COL 172.1"
"Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you:"
EGW's statement about difficulties leading to seeking counsel from God aligns with the principle of prayer and seeking in Matthew 7:7. While not a direct quote, the underlying principle is the same.
"The Lord says, “Call upon Me in the day of trouble.” Psalm 50:15 . He invites us to present to Him our perplexities and necessities, and our need of divine help. He bids us be instant in prayer. As soon as difficulties arise, we are to offer to Him our sincere, earnest petitions. By our importunate prayers we give evidence of our strong confidence in God. The sense of our need leads us to pray earnestly, and our heavenly Father is moved by our supplications. COL 172.2"
"And call upon me in the day of trouble: I will deliver thee, and thou shalt glorify me."
Ellen White directly references Psalms 50:15 in this passage.
"The children of God are not left alone and defenseless. Prayer moves the arm of Omnipotence. Prayer has “subdued kingdoms, wrought righteousness, obtained promises, stopped the mouths of lions, quenched the violence of fire”—we shall know what it means when we hear the reports of the martyrs who died for their faith —“turneth to flight the armies of the aliens.” Hebrews 11:33, 34 . COL 172.4"
"Who through faith subdued kingdoms, wrought righteousness, obtained promises, stopped the mouths of lions,"
EGW directly quotes Hebrews 11:33.