"I have been shown that here is where many will fail to bear the test. They develop their true character in the management of temporal concerns. They manifest unfaithfulness, scheming, dishonesty, in dealing with their fellow men. They do not consider that their hold upon the future, immortal life depends upon how they conduct themselves in the concerns of this life, and that the strictest integrity is indispensable to the formation of a righteous character. Dishonesty is practiced all through our ranks, and this is the cause of lukewarmness on the part of many who profess to believe the truth. They are not connected with Christ and are deceiving their own souls. I am pained to make the statement that there is an alarming lack of honesty even among Sabbathkeepers. 4T 309.3"
"He that is faithful in that which is least is faithful also in much: and he that is unjust in the least is unjust also in much."
The EGW passage directly addresses the principle of faithfulness in small matters reflecting faithfulness in larger ones, and vice versa, mirroring the teaching in Luke 16:10. The context of dishonesty in temporal affairs further strengthens the connection.