"might secure if they would believe and obey? Probation still lingers, and it is our privilege to lay hold of the hope set before us in the gospel. Let us repent and be converted and forsake our sins, that they may be blotted out. “Heaven and earth shall pass away: but My words shall not pass away. And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life, and so that day come upon you unawares. For as a snare shall it come on all them that dwell on the face of the whole earth. Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.” Luke 21:33-36 . 9T 268.2"
"And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life, and so that day come upon you unawares."
EGW directly quotes Luke 21:34.
"Heaven and earth shall pass away: but my words shall not pass away. And take heed to yourselves, lest at any time your hearts be overcharged with surfeiting, and drunkenness, and cares of this life, and so that day come upon you unawares. For as a snare shall it come on all them that dwell on the face of the whole earth. Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man."
Ellen White directly references Luke 21:33-36 in this passage.
"Repent ye therefore, and be converted, that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord;"
EGW uses the phrase 'Repent and be converted and forsake our sins, that they may be blotted out' which is a clear allusion to Acts 3:19.
"Watch therefore: for ye know not what hour your Lord doth come."
Both passages emphasize the need to watch and be ready, though EGW's passage is more directly quoting Luke 21:36, the underlying theme of watchfulness connects to Matthew 24:42.