Gen 16:2, So Sarai said to Abram, “See now, the LORD has restrained me from bearing children. Please, go in to my maid; perhaps I shall obtain children by her.” AND ABRAM HEEDED THE VOICE OF SARAI.
Sarai knew that Abram would be the father of many nations, BUT SHE THOUGHT THAT SHE CAN HELP OUT GOD by giving Hagar to her husband! She trusted her own wisdom rather seeking, believing & calling on the LORD for help!
Gen 16:5, Then Sarai said to Abram, “MY WRONG BE UPON YOU! I gave my maid into your embrace; and when she saw that she had conceived, I became despised in her eyes. THE LORD JUDGE BETWEEN YOU AND ME.”
Sarai blamed Abram for her mistake, but it’s true! Abram should have believed in the promise of GOD also! THIS IS THE WORK OF THE FLESH!
Rom 8:5, For those who live according to the flesh set their minds on the things of the flesh, but those who live according to the Spirit, the things of the Spirit.
Pro 3:5-6, TRUST IN THE LORD WITH ALL YOUR HEART, AND LEAN NOT ON YOUR OWN UNDERSTANDING; IN ALL YOUR WAYS ACKNOWLEDGE HIM, AND HE SHALL DIRECT YOUR PATHS.