'Understanding' in the Bible

For this reason, since the day we heard about it, we have not stopped praying for you, asking [specifically] that you may be filled with the knowledge of His will in all spiritual wisdom [with insight into His purposes], and in understanding [of spiritual things],

[For my hope is] that their hearts may be encouraged as they are knit together in [unselfish] love, so that they may have all the riches that come from the full assurance of understanding [the joy of salvation], resulting in a true [and more intimate] knowledge of the mystery of God, that is, Christ,