If we lack wisdom we are invited to ask for it from God, the source of true wisdom and knowledge (Ps 111:10; Jas 1:5,6). We must co-operate with

Lord, open my spiritual understanding

Him to increase our knowledge and mental capacity through study, for He has given us minds to use as well as putting ourselves in the right surroundings (Prov 13:20, 22:17, 23:12). Although we all have different mental abilities, even the simple can walk the path of righteousness without going astray (Isa 35:8). The indwelling Holy Spirit, along with the Bible gives understanding and insight into the way to live (Ps 119:130; Dan 1:17; Mt 22:29; 1 Jn 5:20).

A person is lacking intelligence if they do not gain wisdom by reflecting on the experiences of their own life and the lives of others – both the good things to copy besides the mistakes not to be repeated, for the Bible says, “Consider the path of your feet” (Prov 4:26). Those who do not even desire to come to a knowledge of the truth or understand God’s ways reveal they are lacking intelligence and wisdom (Mt 13:15; Rom 1:28; 2 Pet 3:5).

Do not belittle or despise those of lesser intelligence than yourself – God loves them just as much as you and He can use them mightily in His Kingdom, He is not impressed by inflated egos; He looks only for availability and He will give the ability as we obey (Act 10:34).  As we all have different levels of intelligence and understanding He speaks to us individually and in varying ways, wanting us to respond willingly, not like the horse or mule, which have no understanding and must be controlled by a bit in their mouth (Ps 32:8,9).

See also: fool, ignorance, intellect, mind, understand/understanding, wisdom/wise.