vs 32 says something peculiar
And I, if and when I am lifted up from the earth [on the cross], will draw all people to Myself [Gentiles, as well as Jews].
With respect to ministry and church growth, when Jesus is given His rightful place, He himself will draw people to God.
We tend to try to do too much, coming up with man made skill in bringing people to Jesus, some even go too far in doing certain terrible things from scamming people to consulting occultic powers to influence people in coming to church or God.
It is so simple
Raise Jesus up, honour Him, give Him His rightful place and people will come effortlessly to God.
God help us