“12) And he [Abraham's servant] said, O LORD God of my master Abraham, I pray thee, send me good speed this day, and shew kindness unto my master Abraham. 13) Behold, I stand here by the well of water; and the daughters of the men of the city come out to draw water: 14) And let it come to pass, that the damsel to whom I shall say, Let down thy pitcher, I pray thee, that I may drink; and she shall say, Drink, and I will give thy camels drink also: let the same be she that thou hast appointed for thy servant Isaac; and thereby shall I know that thou hast shewed kindness unto my master. 15) And it came to pass, before he had done speaking, that, behold, Rebekah came out….” (Genesis 24:12-15a) (See also verses 42-46.)
And it shall come to pass, that before they call, I will answer; and while they are yet speaking, I will hear.” (Isaiah 65:24) God knew that Abraham's servant was going to call upon Him for help. He knew what the servant’s prayer would be, and he had already provided the need while the servant was yet speaking.
Although God hears our prayers before we pray them and already has an answer ready, He still wants us to pray. Many times in His word, we are commanded to pray. God delights in our dependence upon Him and in our talking with Him about our needs. We should never take His provisions for granted.