"Shall the warnings given by Christ be passed by unheeded? Shall we not make diligent work for repentance now, while Mercy's gracious voice is still heard? 9T 269.1"
"How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed unto us by them that heard him;"
Both passages warn against neglecting warnings and the importance of heeding God's message. The idea of 'escape' and 'neglect' are present in both.
"(For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now is the accepted time; behold, now is the day of salvation.)"
Both passages emphasize the urgency of repentance and salvation, highlighting that 'now' is the opportune time to respond to God's grace. EGW's phrase 'while Mercy's gracious voice is still heard' echoes the sentiment of 2 Corinthians 6:2.
“Watch therefore: for ye know not what hour your Lord doth come. But know this, that if the good man of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up. Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh. Who then is a faithful and wise servant, whom his Lord hath made ruler over his household, to give them meat in due season? Blessed is that servant, whom his Lord when he cometh shall find so doing. Verily I say unto you, That he shall make him ruler over all his goods. But and if that evil servant shall say in his heart, My Lord delayeth his coming; and shall begin to smite his fellow servants, and to eat and drink with the drunken; the Lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of, and shall cut him asunder, and appoint him his portion with the hypocrites there shall be weeping and gnashing of teeth.” M…
"Watch therefore: for ye know not what hour your Lord doth come. But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up. Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh. Who then is a faithful and wise servant, whom his lord hath made ruler over his household, to give them meat in due season? Blessed is that servant, whom his lord when he cometh shall find so doing. Verily I say unto you, That he shall make him ruler over all his goods. But and if that evil servant shall say in his heart, My lord delayeth his coming; And shall begin to smite his fellowservants, and to eat and drink with the drunken; The lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of, And shall cut him asunder, and appoint him his portion with the hypocrites: there shall be weeping and gnashing of teeth."
Ellen White directly references Matthew 24:42-51 in this passage.
"Watch therefore: for ye know not what hour your Lord doth come."
The EGW passage directly quotes Matthew 24:42.
"Who then is a faithful and wise servant, whom his lord hath made ruler over his household, to give them meat in due season? Blessed is that servant, whom his lord when he cometh shall find so doing."
The EGW passage directly quotes Matthew 24:45-46.