"A congregation may be the poorest in the land. It may be without the attractions of any outward show; but if the members possess the principles of the character of Christ, angels will unite with them in their worship. The praise and thanksgiving from grateful hearts will ascend to God as a sweet oblation. PK 566.1"
"God is a Spirit: and they that worship him must worship him in spirit and in truth."
EGW's emphasis on the importance of the character of Christ and grateful hearts in worship aligns with the principle of worshipping God in spirit and in truth as stated in John 4:24.
"“For He satisfieth the longing soul, And filleth the hungry soul with goodness.” Psalm 107:1, 2 ; 105:2, 3 ; Psalm 107:9 . PK 566.4"
"For he satisfieth the longing soul, and filleth the hungry soul with goodness."
Ellen White directly references Psalms 107:9 in this passage.