Living with the spirit of understanding is being easily obedient to obey God's commandments without being stubborn to be hearers and doers of righteousness.
PUT THIS ON: Those born of the Spirit loves obedience and wears corrective behaviors --understanding God's laws also keeps them spiritually dressed.
"Do not make yourselves like a horse or mule without understanding. Whose spiritedness is to curbed even by bridle or halter before they will come near you." Psalm: 32: 9 NWT of the Holy Scriptures