"and he was urged to tarry. It was arranged that he should render Laban seven years’ service for the hand of Rachel. PP 188.2"
"And Jacob loved Rachel; and said, I will serve thee seven years for Rachel thy younger daughter."
The EGW passage directly refers to the event described in Genesis 29:18, where Jacob agrees to work for seven years to marry Rachel.
In early times custom required the bridegroom, before the ratification of a marriage engagement, to pay a sum of money or its equivalent in other property, according to his circumstances, to the father of his wife. This was regarded as a safeguard to the marriage relation. Fathers did not think it safe to trust the happiness of their daughters to men who had not made provision for the support of a family. If they had not sufficient thrift and energy to manage business and acquire cattle or lands, it was feared that their life would prove worthless. But provision was made to test those who had nothing to pay for a wife. They were permitted to labor for the father whose daughter they loved, the length of time being regulated by the value of the dowry required. When the suitor was faithful in his services, and proved in other respects worthy, he obtained the daughter as his wife; and generally the dowry which the father had received was given her at her marriage. In the case of both Rache…
"And Jacob loved Rachel; and said, I will serve thee seven years for Rachel thy younger daughter."
The EGW passage elaborates on the custom of the bridegroom paying a dowry or working for the bride's father, which is the context for Jacob's service for Rachel in Genesis 29:18. The EGW passage provides cultural context and explanation, making it a thematic parallel.