Bible Verses About All Christians Should Be As Missionaries: In old age

Remember the dayes of olde: consider the yeeres of so many generations: aske thy father, and he will shewe thee: thine Elders, and they will tell thee.

Yea, euen vnto mine olde age and graie head, O God: forsake me not, vntill I haue declared thine arme vnto this generation, and thy power to all them, that shall come.