The third line of Jabez’s prayer is:
“that Your hand would be with me”
Having just asked God for greater blessing — in order to bless others — and more influence — in order to help others — Jabez realizes that he needs God’s direction and guidance so that he may proceed wisely and justly.
Indeed, having more blessing and more power can easily become a heady thing, distracting or even corrupting the recipient Jabez, being aware of this risk, makes his third petition one of soliciting God guiding hand.
[Read more on The Prayer of Jabez; 1 Chronicles 4:9-10 NKJV]